Word Parts Quick Reference

from http://www.learnthat.org/pages/view/roots.html


This is the most complete root word list and suffix list on the web, yet it's only a hobby of ours. Our true goal: To provide a complete, full circle vocabulary solution that's effective and fun. We want to make it easy to learn words by heart, so you become truly confident using them.
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Find prefixes and word roots below, listed together alphabetically. Visit our list of suffixes, too!
Variations of word root are listed together, like this: "mater, matri," or like this: arch/i/e/o/ae (may appear as: "arch" or "archi" or "arche" or "archo" or "archae").
We decided to neglect all word roots that only appear in a very limited range of words, since it makes more sense to just learn these words. If you know of a word root that is not listed, but seems to be important, please send us an email.

Link

Root

Meanings

Sample Words and Definitions

a/n

not, without

abyss - without bottom; achromatic - without color; anhydrous - without water

a

on

afire - on fire; ashore - on the shore; aside - on the side

ab/s, a

from, away, off

abduct - carry away by force; abnormal - away from normal, not normal; absent - away, not present; aversion - the act of turning away from; abbreviate: to shorten. 

ac, ad 

to, toward, near

accelerate - to increase the speed of; accessible - easily entered, approached, or obtained; admittance - allowing into; 

acro

top, height, tip, beginning

acrobat - a "high walker"; acronym - a word formed from the first (capital) letters of a word; acrophobia - fear of height

act

do

activity - something that a person does; react - to do something in response; interaction - communication between two or more things 

aer/o

air

aerate - to let air reach something; aerial - relating to the air; aerospace - the air space

agr/i/o

farming

agriculture - management of the land, agribusiness - making money by utilizing land; agrarian - relating to the management of land

alg/o

pain

neuralgia - pain caused by a nerve; analgesic - a drug that makes one pain free; nostalgia - aching for the familiar

ambi, amphi

both, on both sides, around

ambidextrous - able to use both hands equally; ambiguous - having more than one meaning; ambivalence - conflicting or opposite feelings toward a person or thing

ambul

walk, move

amble - to walk in a slow, relaxed way; ambulant - walking or moving around; ambulance - a vehicle that moves a patient

ami/o

love

amiable - friendly, pleasant, lovable; amity - friendly and peaceful relations; amorous - showing romantic love

ana

up, back, against,

again, throughout

analysis - a close examination of something; anatomy - the structure of something as visible when cut up for analysis; anachronism - not being in the right place in time

andr/o

man, male

androgynous - being both male and female; android - resembling a human; misandry - hatred towards men 

anim

life, spirit

animal - a living organism; animate - to make alive; equanimity - of balanced spirit

ann/enn

year

anniversary - a date observed once a year; annual - happening once a year; millennium - 1,000 years

ante

before, in front

antecede - to come before something in time; antemeridian - before noon; anteroom- a small room before the main room

anth/o

flower

chrysanthemum and amaranth - names of flowers; anthology - a collection of treasured writings; anthozoan - half plant, half animal, like anemones and corals.

anthrop/o

human

anthropology - the study of mankind; anthropomorphism - giving human form to non-human things; philanthropy - the love to mankind (expressed through good deeds)

anti

against, opposite of

antibody - a substance that destroys micro-organisms; antiseptic - preventing infection;  antisocial - opposing social norm

apo, apho

away, off, separate

aphorism - a short expression of a general truth; apology - an explicit expression of regret, apostrophe - a small dash used in place of an omitted letter 

aqu/a

water

aquarium - a water container for fish; aquatic- relating to water; aqueduct - a pipeline for water

arbor

tree

arborist - someone working with trees; arbor - a shady area formed by trees; arborous - having many trees

arch/i

chief, most important, rule

archbishop - the highest ranking bishop; archenemy - chief or worst enemy; matriarch - a female who rules a group; monarch - a king or queen

arch/a/i

primitive, ancient

archaeology - the study of ancient cultures; archaic - belonging to an earlier period; archive - a collection of historical materials

arthr/o

joint

arthroscope - a tool to see inside a joint; arthritis - inflammation of a joint; arthropod - invertebrates with jointed legs, like spiders, crustaceans, insects

art

skill

artifact - object made by a person's skill; artisan - a person skilled in a craft; artist - a person who creates skillfully

astro,
aster

star, stars, outer space

astronaut - a person traveling to the stars; astronomer - someone who studies the stars; asterisk - a star-shaped sign used as a reference tool

aud/i/io

hear

audible - loud enough to be heard; audience - people who listen to a program; audiovisual - relating to sound and vision

auto

self, same, one

autocrat - a person who governs with absolute power; autograph - a person's own signature; automatic - moving by itself

avi/a

bird

aviary - a large enclosure for birds; aviatrix - a female airplane pilot; aviation - the art of designing or operating aircraft

bar/o

pressure, weight

baric - pertaining to pressure, esp. of the atmosphere;  milliard - metric unit, equal to 1/1000th of a bar; baryon - heavy elementary particle

bell/i

war

bellicose - warlike; belligerent - hostile, ready to fight; rebel - person who opposes and fights

bene

good, well

benefactor - person who gives money to a cause; beneficial - producing a good effect; benevolent - showing kindness or goodwill 

bi/n

two, twice, once in every two

biannual - happening twice a year; binoculars - optical device with two lenses; bilateral - of or involving two sides

bibli/o

book

bibliography - a list of books used as sources; bibliomania - an extreme love of books; bibliophile - a person who loves books

bio

life, living matter

biography- a life story written by another person; biology - the science of life; biosphere - Earth's surface inhabited by living things

blast/o

cell, primitive, immature cell

blastula - an early stage of embryonic development; fibroblast - a cell that forms connective tissue; blastoderm - the layer surrounding the inside of an egg

capt, cept, ceive

take, hold

intercept - to stop or interrupt;perceive - to take notice of something; captivating - taking hold of

cardi/o

heart

cardiac - relating to the heart; cardiogenic - resulting from heart disease; cardiologist - a heart doctor

carn/i

flesh, meat

carnivorous - flesh-eating; carnal - pertaining to the body or flesh; incarnate - given bodily form

cata

down, against

completely,  intensive,

according to

cataclysm - a flood or other disaster, catalog - a complete listing; catastrophe - turning for the worst, a substantial disaster

caust,
caut

to burn

cauterize - to burn with a hot instrument; caustic - capable of burning or eating away; holocaust - total devastation, especially by fire 

cede,
ceed,
cess

go, yield

exceed - to go beyond the limits;  recede - to go back; accessible - easily entered, approached, or obtained; 

celer

fast

accelerate - to increase the speed of; decelerate - to reduce the speed of

cent/i

hundred, hundredth

centennial- the 100th anniversary; centimeter - 1/100 of a meter; century - 100 years

centr/o/i

center

egocentric - self-centered; eccentric - not having a common center, not according to norm; centrifugal - moving outward from a center

cephal/o

head

encephalitis - inflammation of the brain; cephalic - pertaining to the head; cephalopod - marine mollusks like octopus and squid who have tentacles growing from their head

cerebr/o

brain 

cerebral - pertaining to the brain; cerebrate - to use the brain; cerebrospinal - pertaining to the brain and the spinal cord

cert

sure

ascertain- to find out something with certainty; certain - being absolutely sure; certify - to state that something is true

chrom/o chromat/o, chros

color, pigment

achromatic - without color; chromium - a blue-white metallic chemical element, chromatics - the study of color

chron/o

time

chronic - lasting for a long time; chronological - arranging events in time order, synchronize - happening at the same time

chrys/o

gold, yellow

chrysanthemum and helichrysum - golden/yellow flowers; chrysolite - a yellowish gem

cide, cise

cut, kill

homicide - murder; incisor - a sharp tooth for cutting food; insecticide - a chemical used to kill insects

circum,
circle

around, about

circumnavigate - to sail around; circumscribe - to draw around; circumspect - looking around

claim, clam

shout, speak out

clamor - to shout and make noise; exclaim - to cry out loudly and suddenly; proclamation - something announced officially in public 

clar

clear

clarification - an explanation; clarify - to make something clear; declare - to state something clearly

clud, clus

close

conclusion - the end or last part; exclusion - shutting out, rejecting; seclude - to keep away from; to isolate

cline

lean

inclination - a leaning toward; incline - a surface that slopes or leans; recline - to lean back and relax

co

with, together, joint

coauthor - writer who collaborates with another author; coeducation - educating males and females together; cohousing - planning your neighborhood in an intentional neighborly fashion

col

together, jointly

Collaborate - to work together; collision - smashing together; colloquial - words formed by everday interaction

com

together, common

commemorate - to memorize together; composition - an arrangement or putting together of parts; commune - living together while owning things in common

cogn/i

know

cognition - process of acquiring knowledge;  incognito - disguised so no one knows you; recognize - to discover that one knows

con

with, jointly

concur - to agree with someone; contemporary - of the same time period as others; convention - a gathering of people with a common interest

contra/o

against, opposite

contradict to argue against, Contraflow, contraception, contrary not in agreement, controversy disagreement

corp/o

body

corporation - a company recognized by law as a single body; corpse - a dead body; corporal - pertaining to the body

cosm/o

universe

cosmonaut - a Russian astronaut; cosmos - the universe; microcosm - a miniature universe

counter

opposite, contrary, opposing

counteract - to oppose the effects of an action; countermand - to cancel a previous order; counteroffensive - attack against an attack

cranio

skull

craniology - the study of skull characteristics; cranium - skull of vertebrates; cranial - pertaining to the skull

cred

believe

credence - belief that something is true or valid; credulous - believing things too easily, gullible; incredible - unbelievable

crypto

hidden, secret

cryptic - of hidden meaning; cryptography - science of secret codes; encrypt - encode into secret code

cumul

mass, heap

accumulate - to gather or pile up; cumulative - gradually building up 

cycl

circle, ring

bicycle - a vehicle with two wheels; cycle - a sequence that is repeated; cyclone - a storm with circling winds

de

reduce, away, down, remove

decelerate - to slow down, reduce speed; dethrone - to remove from power; debug - to remove bugs 

dec/a,
deka

ten

decade - 10 years; decathlon - athletic contest that includes 10 disciplines in which each participant competes; December - formerly the 10th month of the Roman calendar

deci

one tenth

deciliter - a tenth of a liter; decimate - reduce dramatically; decibel - one tenth of the sound volume unit bel

dem/o

people

democracy - government of the people; demographic - the study of people; epidemic - spreading among people in a region

demi

half, less than

demitasse - a small cup of coffee; demimonde - someone of little respected life style

dendr/o/i

tree

philodendron - a climbing plant that grows on trees; dendrochronology - dating events by studying growth rings in trees; dendriform - in the shape of a tree

dent, dont

tooth

dental - relating to teeth; dentist - a doctor for the teeth; dentures - a set of false teeth

derm/a

skin

dermatologist - a doctor for the skin; pachyderm - a class of animals with very thick skin (elephant, rhinoceros); dermatitis - inflammation of the skin

di/plo

two, twice

dichromatic - displaying two colors; diploma - a certificate, literally "a letter folded double"; dilemma - a situation that requires a choice between two alternatives.

di/s

apart, away,

not, to the opposite

digression - a departure from the main issue, subject; disappear - to move out of sight; dissect - to cut apart piece by piece.

dia

through, between,

apart, across

diabetes - disease characterized by excessive thirst and discharge of urine; diagnosis - understanding a condition by going through a detailed review of symptoms; dialog - conversation between two people.

dict

speak

contradict - to express the opposite of; prediction - a statement foretelling the future; dictate - to speak out loud for another person to write down.

domin

master

dominate - to be the master of; domineering - excessively controlling; predominate - to have more power than others

don/at

give

donation - a contribution or gift; donor - someone who gives something; pardon - to give forgiveness for an offense

duc/t

lead

conduct - to lead musicians in playing music; educate - to lead to knowledge; deduction - a subtraction of an amount.

du/o

two, twice

duplicate - make an identical copy; duet - a musical composition for two voices or instruments; duo - a pair normally thought of as being together. 

dur

harden, to last, lasting

durable - having the quality of lasting; duration - the length of time something lasts; enduring - able to last. 

dyn/a/am

power, energy, strength

dynamo - a generator of energy; dynamic - having physical energy/power; dynamite - a powerful explosive.

dys

abnormal, bad

dyspepsia - abnormal indigestion; dystopia - an imaginary place of total misery; dyslexia - impairment of the ability to handle words. 

e-

out, away

eloquent - speaking beautifully and forcefully; emissary - a representative of a country or group sent on a mission; eject - throw out forcefully.

ego

self

egoistic - self-centered; alter ego - a higher aspect of oneself; egomania - excessive preoccupation with oneself.

em, en

into, cover with, cause

empathy - intention to feel like another person; empower - put into power; engorge - make larger.

endo

within, inside

endotherm - a creature that can keep its inside temperature fairly constant; endocrine - relating to glands that secrete directly into the blood or lymph; endogamy - the custom to marry within one's clan, tribe etc.

enn/i, anni

years

bicentennial - of or relating to an age or period of 200 years; centennial - of or relating to an age or period of 100 years;  perennial -lasting through many years.

en, in

inside, inwards

envision - to picture in the mind; enclose - lock inside; inwards - towards the inside.

ep/i

on, upon, over,

among, at, after,

to, outside 

epidemic - the rapid spread of something negative; epilogue - a short speech delivered after a play; epicenter - the center of an earthquake.

equ/i

equal, equally

equidistant -  an equal distance from two points; equanimity - calm temperament, evenness of temper; equation - a statement of equality.

erg/o

work

ergonomics - study of the working environment; energy - the power to accomplish work; energetics - science that looks at energy and its transformation.

esth/aesth

feeling, sensation, beauty

esthetician - someone who beautifies; aesthetic - pertaining to a sense of beauty; kinesthesia - the sensation of bodily movement.

ethno

race, people

ethnic - pertaining to a defined group of people; ethnocentric - focusing on the ethnicity of people; ethnology - the science of people and races.

eu

good, well

euphemism - replacing an offensive word with an inoffensive one; euphonious - having a pleasant sound; euphoria - feeling of well-being. 

ex

from, out,

excavate - to dig out; exhale - to breathe out; extract - to pull out.

extra, extro

outside, beyond

extraordinary - beyond ordinary; extraterrestrial - outside the Earth; extrovert - an outgoing person. 

fac/t

make, do

artifact - an object made by a person; factory - a place where things are made; malefact - a person who does wrong.

fer

bear, bring, carry

confer - to bring an honor to someone; ferry - a boat that carries passengers; transfer - to move to another place.

fid

faith

confide - place trust in someone, fidelity - faithfulness; fiduciary - a trustee;

flect

bend

deflect - to bend course because of hitting something; inflection - a bending in the voice's tone or pitch; flexible - easily  bending.

flor/a,
fleur

flower

florist - someone working with flowers; floral - flowerlike; flora - the plant life of a particular time or area

for

completely (used to intensify

the meaning of a word)

forsaken or forfeited - completely lost; forgiven - completely given (a release of debt).

fore

in front of, previous, earlier

forebear - ancestor; forebode - to give an advance warning of something bad; forecast - a preview of events to be.

fract, frag

break

fracture - a break; fragile - easy to break; fragment or fraction - a part or element of a larger whole; 

fug

flee, run away, escape

fugitive - a person who is running away; refuge - a sheltered place to flee to; refugee - a person seeking protection

funct

perform, work

defunct - no longer working or alive; function - to work or perform a role normally; malfunction - to fail to work correctly.

fus

pour

confusion - being flooded with too much information that is hard to make sense of; fuse - to melt by heating; infuse - to put into.

gastr/o

stomach

gastric - pertaining to the stomach; gastronomy - serving the stomach by providing good food; gastritis - inflammation of the stomach.

gen/o/e/
genesis

birth, production,

formation, kind

genealogy - the study of the history of a family; generation - all the people born at approximately the same time; genetic -relating to heredity encoded in the genes.

geo

earth, soil, global

geography - study of the earth's surface; geology - study of the structure of the earth; geoponics - soil based agriculture.

ger

old age

geriatrics - medicine pertaining to the elderly; gerontocracy - the rule of the elders; gerontology - the science of aging.

giga

a billion

gigabyte - unit of computer storage space; gigahertz - unit of frequency (one billion Hz/sec); gigawatt unit of electric power (one billion watts).

gon

angle

decagon - a polygon with 10 angles; diagonal - a slanting line running across a space; octagon - a geometrical figure with 8 angles.

gram

letter, written

diagram - a simple drawing; grammar - rules of how to write words in sentences; telegram - a message sent by telegraph.

graph/y

writing, recording, written

Graphology - the study of handwritings; autograph - written with one's own hand; seismograph - a machine noting strength and duration of earthquakes.

grat

pleasing

gratify - to please someone; grateful - feeling thankful;  gratuity - a tip, token of appreciation.

gyn/o/e

woman, female

gynecology - the science of female reproductive health; gynephobia - fear of women; gynecoid - resembling a woman. 

gress, grad/e/i

to step, to go

digression - a departure from the main issue, subject, etc.; progress - movement forward or onward; gradual - step by step.

hect/o, hecat

hundred

 hectoliter - 100 liters; hectare - metric unit equaling 100 ares or 10,000 square meters; hectometer - 100 meters.

helic/o

spiral, circular

helicopter - an aircraft with horizontal rotating wing; helix - a spiral form; helicon - a circular tuba.

heli/o

sun

heliotropism - movement or growth in relating to the sun; heliograph - apparatus used to send message with the help of sunlight; helianthus - genus of plants including sunflowers.

hemi

half, partial

hemicycle - a semicircular structure; hemisphere - one half of the earth; hemistich - half a line of poetry.

hem/o/a

blood

hemorrhage - clotting of the blood; hemorrhoids - swelling of the blood vessels; hemoglobin - red blood particle. 

hepa

liver

hepatitis - inflammation of the liver; hepatoma - a tumor of the liver; hepatotoxic - toxic and damaging to the liver.

hept/a

seven

heptagon - a shape with seven angles and seven sides; Heptateuch - the first seven books of the Old Testament; heptameter - a line of verse consisting of seven metrical feet.

herbi

grass, plant

herbicide - any chemical used to kill unwanted plants, etc.; herbivorous - plant-eating; herbal - relating to plants.

hetero

different, other

heterogeneous - made up of unrelated parts; heteronyms - words with same spelling but different meanings; heterodox - not conforming to traditional beliefs.

hex/a

six

hexagon - a shape with six angles/sides; hexameter - a verse measured in six; hexapod - having six legs.

histo

tissue

histology - study of the microscopic structure of tissues; histochemistry - study of the chemical constitution of cells and tissues.

homo,
homeo

like, alike, same

homogeneous - of the same nature or kind; homonym - sounding alike; homeopath - a therapy that is based on treating "same with same"

hydr/o

liquid, water

hydrate - to add water to; hydrophobia - intense fear of water; hydroponics - growing plants in liquid nutrient solution; hydraulic - operated by force created by a liquid.

hygr/o

moisture, humidity

hygrometer - tool used to measure humidity; hygrograph - instrument for recording variations in atmospheric humidity.

hyper

too much, over,

excessive, beyond

hyperactive - very restless; hypercritical - too critical; hypertension - above normal pressure.

hyp/o

under

hypoglycemia - an abnormally low level of sugar in the blood; hypothermia - abnormally low body temperature; hypothesis - a theory that is unproven but used under the assumption that it is true.

iatr/o

medical care

geriatrics - medical care of the elderly; pediatrician - a doctor who treats children; podiatry - medical care for feet.

icon/o

image

icon - an (often religious) image, in modern usage a simplified graphic of high symbolic content; iconology - science of symbols and icons; iconoclast - someone who destroys religious images and traditional beliefs. 

idio

peculiar, personal, distinct

idiomatic - Peculiar to a particular language; idiosyncracy - a physical or mental characteristic typical or a particular person;  idiot - someone who is distinctly foolish or stupid.

il, in 

in, into

illuminate - to give light to; innovation - a new idea, method, or device; inspection - the act of examining or reviewing.

ig, il, im,
in, ir

not, without

illegal - not legal; impossible - not possible; inappropriate - not appropriate; irresponsible - not responsible.

imag

likeness

image - a likeness of someone; imaginative - able to think up new ideas or images; imagine - to form a picture or likeness in the mind.

infra

beneath, below

infrastructure - underlying framework of a system; infrared - below the regular light spectrum.

inter

between, among, jointly

international - involving two or more countries; intersection - place where roads come together; intercept - to stop or interrupt the course of.

intra,
intro

within, inside

intrastate - existing in one state; intravenous - inside or into a vein; introvert - shy person who keeps within him/herself.

ir

not

irredeemable - not redeemable; irreformable - not reformable; irrational - not rational.

iso

equal

isobar - a line on a map connecting points of equal barometric pressure; isometric - having equality of measure; isothermal - having equal or constant temperature.

ject

throw

eject - to throw someone/something out; interject - to throw a remark into a discussion; project - to cast or throw something.

jud

law

judgment - a decision of a court of law; judicial - having to do with judges or courts of law; judiciary - a system of courts of law.

junct

join

conjunction - a word that joins parts of sentences; disjunction - a disconnection; junction - a place where two things join.

juven

young

juvenile - youthful or childish; rejuvenate - to bring back to youthful strength or appearance. 

kilo

thousand

kilobyte - 1,000 bytes; kilometer - 1,000 meter; kilograms - 1,000 grams.

kine/t
/mat

motion, division

kinetics - study of the force of motion; psychokinesis or telekinesis - the ability to move objects with your mind; cinematography - motion picture making.

lab

work

collaborate - to work with a person; elaborate - to work out the details; laborious - requiring a lot of hard work.

lact/o

milk

lactate - to give milk, nurse; lactose - the sugar contained in milk; lactic acid.

later

side

bilateral - of or involving two sides; unilateral - affecting one side of something. 

leuk/o,
leuc/o

white, colorless

leukemia - abnormal increase of white blood cells in the blood; leukocyte - a mature white blood cell; leucine - a white, crystalline amino acid.

lex

word, law, reading

lexicology - the study and history of words; alexia -loss of the ability to read; illegal - not authorized by the official rules or laws.

liber

free

liberate - to set free; libertine - a person with a free, wild lifestyle; liberty - freedom.

lingu

language, tongue

linguist - one who studies languages; multilingual - able to communicate in multiple languages; linguine - long, flat "tongue-shaped" pasta.

lip/o

fat

liposuction - the mechanical removal of fat reserves in the tissue; lipase - enzyme that breaks down fat; lipoid - resembling fat. 

lite, ite,
lith/o

mineral, rock, fossil

apatite - a group of common minerals; granite - a hard, granular rock; monolith - a remarkable, unique stone.

loc

place

dislocate - to put something out of its usual place; location - a place;  relocate - to move to a new place.

log/o

word, doctrine, discourse

logic - correct reasoning; monologue - a long speech by one speaker;analogy - similarity, especially between things otherwise dissimilar.

loqu, locu

speak

eloquent - speaking beautifully and forcefully ; loquacious - very talkative; elocution - art of public speaking. 

luc

light

elucidate - to explain, to throw light on; lucid - easily understood, giving off light; translucent - allowing light through.

lud, lus

to play

prelude - introduction to the major performance;  illusion - misleading optical image or impression; delude - to mislead, deceive.

lumin

light

illuminate - to fill with light; lumen - unit measuring light.

lun/a/i

moon

lunar - relating to the moon; lunarscape - the surface of the moon; lunatic - insane (as if driven mad by the moon).

macro

large, great

macroevolution - large scale evolution; macromolecule - a large molecule; macroeconomics - study of the overall forces of economy.

magn/a/i

great, large

magnify - make larger; magnificent - grand; magnate - a powerful person, especially in business or industry.

mal/e

bad, ill, wrong

malcontent - wrong content; malaria - "bad air", infectious disease thought to originate from the "bad air" of the swamps, but caused by the bite of an infected mosquito; malicious - showing strong ill will.

man/i/u

hand

maneuver - to move by hand; manual - done with the hands; manuscript - a book written by hand.

mand

to order

command - an order or instruction; demand - a hard-to-ignore order; mandate - an official order.

mania

madness, insanity,

excessive desire

bibliomania - a crazy love of books; egomania - a mad love of oneself; maniac an insane person.

mar/i

sea

marina - a harbor for pleasure boats; maritime - relating to the sea; submarine - an undersea boat; aquamarine - color of sea water.

mater,
matr/i

mother

maternal - relating to motherhood; maternity - the state of being a mother; matriarch - a woman head of a household.

max

greatest

maximal - the best or greatest possible; maximize - to make as great as possible; maximum - the greatest amount.

medi

middle

medieval - pertaining to the Middle Ages; medium - in the middle; mediocre - only of medium (inferior) quality.

mega

great, large, million

megalopolis - an area with many nearby cities; megaphone - a device that projects a loud voice; megastructure - huge building or other structure.

melan/o

black

melancholy - a state of dark emotions; melanoma - malignant dark tumor of the skin; melodrama - a dark, pathetic drama.

memor/i

remember

commemorate - to honor the memory of, as by a ceremony; memorial - related to remembering a person or event; memory: an ability    to  retain knowledge or an individual's stock of retained knowledge.  

merge,
mers

dip, dive

immerge or immerse - to put or dip something into a liquid; submerge to dip something completely into wate.r

meso

middle

Mesoamerica - Middle America;  meson - elementary particle with a mass between an electron and a proton.

meta

change, after, beyond, between

metaphysics - study of nature and reality; metamorphosis - a complete change of form; metastasis - the transmission of disease to other parts of the body.

meter,
metr/y

measure

audiometer- an instrument that measures hearing acuteness; chronometer- an instrument that measures time; metric - measured.

micro

very small, short, minute

microbe - a very small living thing; microchip - a tiny wafer with an integrated circuit; microscope - a device to see very small things.

mid

middle

midriff - the area between the chest and the waist; midterm - middle of a term in school; midway - halfway between.

migr

move

immigrant - a person who moves to a new country to settle; migrant - person who moves from place to place; migration - the process of moving.

milli

onethousandth

millimeter - one thousandth of a meter; millibar - one thousandth of a bar; milliliter - one thousandth of a liter.

min/i

small, less

mini - something that is very small; minuscule - extremely tiny; minutiae - very small or trivial details.

mis/o

bad, badly, wrong, wrongly,

to hate

misbehave - to behave badly; misprint - an error in printing; misnomer - an error in naming a person or thing.

miss, mit

send, let go

dismiss - to send someone away; missile - a weapon sent into the air; emit - to send something out; admittance - entry.

mob

move

immobilize - to stop from moving; mobile - able to move freely; mobility - the quality of being able to move.

mon/o

one, single, alone

monochromat - having one color; monologue - a speech spoken by one person; monotheism - belief in one god.

mot, mov

move

motion - the act of moving; motivate - to move someone to action; promote to move someone forward; removable - able to be taken or carried away.

morph/o

form

metamorphosis - complete change of form; endorphins - chemical in the brain able to transform pain; amorphous - without distinct shape or form.

mort

death

immortal - living forever, unable to die; mortal - certain to die; mortician - an undertaker.

multi

many, more than one or two

multicolored - having many colors; multimedia - using a range of media; multitasking - doing many things at once.

mut

change

immutable - not changing; mutant - an organism that has undergone change; mutate - to undergo a change.

my/o

muscle

myocardium - the middle muscle of the heart; myasthenia - muscle fatigue or weakness; myosin - common protein in muscle tissue.

narr

tell

narrate - to tell a story; narrative - a story; narrator - a person who tells a story.

nat

born

innate - included since birth; natal - relating to birth; natural - gotten at birth, not afterward.

nav

ship

circumnavigate - to sail around a place; naval - relating to a navy or warships; navigate - to sail a ship through a place.

necr/o

dead, death

necrophil - loving death; necrosis - the death of tissue due to disease or injury; necrology - a list of persons who have recently died.

neg

no

negate - to say it didn't happen; negative - meaning "no"; renege - to go back on a promise.

neo

new, recent

neoclassic - a revival of classic form, neocolonialism - the indirect ("new") economical and political control of a region by a more powerful foreign power; neonatal - a newborn child, especially the first few weeks.

nephr/o

kidney

nephritis - inflammation of the kidneys; nephrotomy - surgical incision of a kidney; nephron - a single, excretory unit in the kidney.

neur/o

nerve

neuralgia - pain along a nerve; neurologist - doctor specializing in the nerves; neurotic -  mental disorder that usually does not include an impaired perception of reality.

nom/in

name

misnomer - an error in naming a person or thing; nominal - being something in name only but not in reality; nominate - to name for election or appointment, to designate.

non

no, not, without

nondescript - with no special characteristics; nonfiction - true, real, not made-up; nonsense - without sense.

not

mark

notable - marked as worthy of attention; notarize - to certify a signature on a legal document; annotate - to add remarks.

noun,
nunc

declare

announce - to declare in public; denounce - to proclaim harsh criticism; enunciate - to speak or declare something clearly.

nov

new

innovate - to introduce a new way; novelty - something new; novice - a person who is new at a job; renovate - to make something like new again.

numer

number

enumerate - to name a number of items on a list; numerology - the study of magical uses of numbers; numerous - a large number.

ob, op

in the way, against

object - to be against something; obscure - hard to understand; opposition - the act of resistance or action against.

oct/a/o

eight

octagon - a figure with 8 sides and 8 angles; octogenarian - person in his or her 80s; octopus - sea animal with 8 arms.

ocu

eye

binoculars - lens device for seeing distances; monocula - relating to one eye; oculist - an eye doctor.

omni

all

omnipotent - with all the power; omniscient - knowing all things; omnivorous eating all foods.

op/t/s

eye, visual condition, sight

optic - relating to the eyes; optician - a person who fits eyeglasses; autopsy - the examination of a dead body.

opt

best

optimal - the best, the most desirable; optimize - to make the best of; optimum - the best something could be.

ortho

straight

orthodontist - a dentist that straightens teeth; orthopedic - a doctor concerned with the proper alignment of the bones; orthography - the correct way of writing.

osteo

bone

osteoarthritis - inflammation caused by degeneration of the joints; osteopathy - therapy that uses among others manipulation of the skeleton to restore health; osteology - the study of bones.

out

goes beyond,

surpasses, exceeds

Outgoing - being of lively, sharing nature; outdoing - doing better than; outdoor - outside.

over

excessive

overconfident - more confident than is appropriate; overstock - more supplies than is desirable; overexcited - ,more excited than one should be.

oxy

sharp

oxymoron - combining two ideas that sharply contradict each other; oxydize - corrode a surface.

pale/o

ancient

paleontology - study of ancient fossils; paleography - the study of ancient forms of writing; Paleolithic - period of the Stone Age.

pan

all, any, everyone

panacea - a cure for all diseases or problems; panorama - an all-around view; pantheism - the worship of all gods; pandemic - affecting all.

para

beside, beyond, abnormal,

assistant

parasite - an organism that lives on and off another living being; parallel - alongside and always an equal distance apart; paragraph - a portion of a writtenn document that presents a distinct idea.

para

protection from

parachute - protection from falling; parasol - an umbrella used to protect from the sun; 

pater,
patr/i

father

paternal - relating to fathers; paternity - fatherhood; patriarch - a man who rules a group.

path

feeling, emotion

antipathy - a feeling of great dislike; apathy - a lack of feeling or interest; empathy - ability to understand another's feelings.

ped/i/e

foot, feet

pedal - a lever pushed by the foot; pedestrian - one who walks; pedicure - cosmetic treatment of feet and toes.

pel

drive, force

compel - to force someone to act; expel - to drive someone out of a place; repel - to force back.

pent/a

five

pentagon - shape having 5 angles and 5 sides, pentagram - a five-pointed star formerly used as a symbolic figure in magic; pentathlon - an athletic contest that includes five events.

pept,
peps

digestion

dyspepsia - abnormal digestion; peptic - aiding digestion; pepsin - a digestive enzyme.

per

through, throughout

permanent - lasting throughout all time; permeate - to spread throughout; persist - to continue for a long time; perennial - lasting through many years.

peri

around, enclosing

periodontal - pertaining to bone and tissue around a tooth; peripheral - lying outside of the center;  perimeter - the outer boundary of an area.

phag/e

to eat

esophagus - muscular tube that carries food to the stomach; anthropophagy or sarcophagy - cannibalism; xylophagous - feeding on wood.

phil/o

love, friend

philanthropist - one who loves humanity;  philology - the love of words; philosophy - the love of wisdom; bibliophil - loving books. 

phon/o
/e/y

sound

cacophony - loud, unpleasant sounds; microphone - a device that records and amplifies sound; phonetic - relating to human speech sounds.

phot/o

light

photogenic - caused by light; photograph - image made on light-sensitive film; photon - the smallest possible unit of light.

phyll/o

leaf

chlorophyll - a group of green pigments found in leaves; phyllotaxis - the arrangement of leaves on a stem; phyllite - a rock that forms sheets, similar to slate.

phys

nature, medicine, the body

physical - relating to the body; physician - a doctor; physique - nature and shape of one's body.

phyt/o/e

plant, to grow

epiphyte - a plant growing independently on the surface of another; hydrophyte - a plant that grows only in water; neophyte - a beginner, especially a person recently converted to a new belief.

plas/t/m

to form, development,

forming cells

protoplasm - something that is the first made or formed, also the living portion of a cell; plastic - able to be formed, especially when warm; plaster - a mixture of lime, sand and water that forms a smooth solid covering for walls. 

pneum/o

breathing, lung, air, spirit

pneumonia - inflammation of the lungs; pneumatic - using the force of air; dyspnea - difficulty breathing.

pod/e

foot

podiatrist - a doctor for the feet; podium - a small platform to stand on; tripod - a stand or frame with 3 legs.

poli

city

metropolis - a large city; police - people who work for the government to maintain order in a city; politics - actions of a government or political party.

poly

many, more than one

polychrome - with many colors; polyglot - a person fluent in many languages; polygon - shape with 3 or more straight sides.

pon

place, put

opponent - a person who places him/herself against an action, idea, etc.; postpone - to put off doing something.

pop

people

popular - appealing to a lot of people; population - all of the people who live in a particular area; populist - a supporter of the rights of people.

port

carry

export - to carry goods out of a place to another; portable - able to be carried; porter - a person who carries luggage.

pos

place, put

deposit - to place or drop something; expose to place out into the open for all to see; position - the place where someone is.

post

after, behind

posthumous - after someone's death; postpone - to delay something;  postscript - an addition to an already completed document.

pre

earlier, before, in front of

preamble - a part in front of a formal document; prepare - to get ready in advance; prediction - a statement foretelling the future.

pro

before, in front of,

for, forward

prognosis - a prediction of what will happen; prologue - a passage before the main part; prophet - a person who foretells the future.

prot/o

primitive, first, chief

prototype - the first of a kind; proton - on of the very basic parts of an atom; protocol - a first draft from which a document is prepared.

pseud/o

wrong,false

pseudonym - a fictitious name; pseudoscience - theories presumed without proof of a scientific nature; pseudopregnancy - a false pregnancy.

psych/o

mind, mental

psyche - the human spirit or soul; psychic - relating to the human mind or someone who has supernatural mental abilities; psychology - the study of the mind.

pugn/a,
pung 

to fight

pugnacious - having a quarrelsome or aggressive nature; repugnant - distasteful, offensive or revolting; pungent - piercing.

pul

urge

compulsion - a very strong urge; expulsion - to someone out; impulsive - having a spontaneous urge to do something.

purg

clean

purge - remove anything undesirable; purgatory - according to Roman Catholics a place where souls must clean themselves of sin; expurgate - remove objectionable passages from a publication.

put

think

computer - an electronic thinking device; dispute - to disagree with what another person thinks; input - contribution of one's thinking.

pyr/o

fire, heat

pyrotechnics - the art of making fireworks; pyrometer - a thermometer for measuring high temperature; pyretic - relating to or producing fever. 

quad/r/ri

four

quadrant - open space with buildings on 4 sides; quadrennium - period of 4 years; quadruped - a 4-footed animal.

quart

fourth

quarter - one fourth; quart - a fourth of a gallon; quartet - a musical composition or group involving 4 voices or instruments.

quin/t

five, fifth

quintett - a composition for 5 voices or instruments; quintessence - pure essence, based on the ancient philosophy that there was a fifth element that was present in all things; quintuple - fivefold.

radic, 
radix

root

eradicate - pull out at the roots; radical - fundamental, looking at things from a drastic point of view; radish - an edible root of the mustard family.

radio

radiation, ray

radioactive - emitting radiation; radiologist - someone diagnosing or treating via radiation. 

ram/i

branch

ramification - the resulting consequence of a decision; ramify - to spread or branch out; ramus - a branchlike part.

re

again, back, backward

rebound -to spring back again; rewind - to wind something backward; reaction: a response; recognize: to identify someone or something seen before.

reg

guide, rule

regent - a person who rules on behalf of a king or queen; regime - a government that rules; regulate - to apply a rule.

retro

backward, back

retroactive - relating to something in the past; retrogress - to go back to an earlier condition; retrospect - the remembering of past events.

rhin/o

nose

rhinoceros - a species of animals with a big horn on the snout; rhinoplasty - surgery of the nose; rhinovirus - viruses that are causing the common cold.

rhod/o

red

rhododendron - a flower with red/pink flowers; rhodium - an element which produces a red solution; rhodopsin - a purple pigment in the retina that is needed for vision.

rid

laugh

deride - to make fun of someone; ridicule - to make fun or mock; ridiculous - silly, causing laughter.

rrh/ea
/oea/ag

flow, discharge

diarrhea - abnormally excessive bowl movement; hemorrhage - heavy blood flow; catarrh - inflammation of a mucous membrane, especially the nose and throat. 

rub

red

ruby - deep red color and a precious stone of the same color; rubella - measles; bilirubin - reddish pigment in bile.

rupt

break, burst

bankrupt - unable to pay because you're "broke"; interrupt - to break into a conversation or event, to disturb; rupture - a break in something.

san

health

sane - mentally healthy; sanitary - relating to cleanliness and health; sanitation - maintenance of public health and cleanliness.

scend

climb, go

ascend - to climb upward; crescendo - a climbing up of the volume of music; descend - to go or climb down.

sci

know

conscience - sense of knowing right from wrong; conscious - knowing what is happening; omniscient - knowing everything.

scler/o

hard

arteriosclerosis - hardening of the arterial walls;  multiple sclerosis - disease which causes the tissue of the brain and spinal cord to harden; sclerometer - instrument for measuring hardness.

scop/e/y

see, examine, observe

microscope - a device used to see tiny things; periscope - a seeing instrument on a submarine; telescope - a device used to see over a distance.

scrib,
script

write, written

inscribe - to write letters or words on a surface; scribe - a person who writes out documents; describe - to represent with words or pictures.

se

apart

secede - to formally break away from; seclude - to keep away from; serum - a liquid isolated out of another.

sect

cut

dissect - to cut apart piece by piece; intersection - the place or point where two things cross each other; bisect - to cut into two equal parts.

self

of, for, or by itself

self-discipline - the ability to discipline yourself; self-respect - respect for yourself; selfish concerned only with your own interests.

semi

half, partial

semiannual - every half year; semicircle - half a circle; semiconscious  - partly conscious; semiannual - every half of a year.

sept/i

seven

September - this used to be the seventh month in the Roman calendar; septet - a group of seven musicians; septuagenarian - a person in his/her seventies.

serv

save, keep

conserve - to save or keep something safe; preserve - to save something; reservation - a place kept for a person.

sex

six

sextet or sextette - a composition or group of six, sextuple - sixfold; sexagenarian - person in his/her sixties.

sol

alone

desolate - lonely, dismal, gloomy; solitary - done alone, by yourself; solo - a performance done by one person alone.

sol

sun

solar - involving the sun; parasol - umbrella protecting from the sun; solarium - a room where one is exposed to sun light.

somn/I

sleep

insomnia - inability to fall asleep; somniloquy - talking in your sleep; somnolent - feeling sleepy.

son

sound

consonant - a speech sound; sonorous - producing loud, full, rich sounds; supersonic - faster than sound; unison - as one voice.  

soph

wise

philosopher - a wise person; sophisticated - wise about the ways of the world; sophism - a clever but misleading argument.

spec/t,
spic

see, look

circumspect - cautious, looking all around; retrospective - a looking back at past things; spectator - a person who sees an event.

sphere

ball

biosphere - the whole round surface of the earth; hemisphere - half the earth spherically shaped like a ball.

spir

breathe

inspire - to stimulate or animate; transpire - to give of vapor with waste product through the skin or a membrane; spirit - invisible life force.

sta

stand

stable - standing steady and firm; stagnant - standing still, not moving; stationary - at a standstill, fixed.

stell

star

constellation - a group of stars that forms a pattern; interstellar - between the stars; stellar - relating to stars.

struct

build

construct - to build; destruction - the act of destroying something that was built; structure - something built; infrastructure - underlying framework of a system.

sub

under, lower than,

inferior to

submarine - an underwater boat; submerge - to put underwater; substandard - inferior to accepted standards.

sum

highest

sum - the combined total of everything; summation - the total, highest amount; summit the highest point or top.

super

higher in quality

or quantity

Super bowl - the final annual football game; superior - above average, better in quality; supersonic - faster than the speed of sound.

sy/m
/n/l/s

together, with, same

symmetry -similarity in size, form or arrangement; synergy - the combined effect; synchronize - to cause to occur at the same time.

tact, tang

touch

contact - a state in which two things touch; tactile - relating to the sense of touch; tangible - able to be touched; intact - with nothing missing.

tax/o

arrangement

syntax - the systematic arrangement of words; taxonomy - the science of classification; ataxia - loss of the ability to coordinate muscle action. 

techno

technique, skill

technology - the practical application of knowledge; technocracy - rule of technology; technologically - characterized by technology.

tel/e/o

far, distant, complete

telephone - a device to talk to a distant person; telescope - a device to view distant objects; television - a device to receive pictures from afar; telecommuting - working remotely, bridging the distance via virtual devices.

temp/or

time

contemporary - existing at the same time; temporal - relating to time; temporary - lasting for a limited time.

term/ina

end, limit

determine - to find something out at the end of an investigation; terminate - to end; exterminate - to destroy or get rid of completely.

terr/a/i

land, earth

extraterrestrial - existing outside the earth; terrain - ground or land; territory - an area of land.

tetra

four

tetrapod - having 4 legs; tetrarchy - government by 4 rulers; tetrose - a monosaccharide with four carbon atoms.

the/o

god

monotheism - belief in one god; polytheism - worshiping more than one god; theology - the study of religion, god, etc.

therm/o

heat

thermal - relating to heat; thermos - an insulated jar that keeps heat in; thermostat - a device that controls heat.

tort

twist

contortion - a twisted shape or position; distort - to alter the shape or condition of; retort - reply in a manner that is supposed to change the effect of something previously said. 

tox

poison

detoxification -  the process of removing poisons; toxic - poisonous; toxicology - the study of poisons; intoxicated - influenced by drugs.

tract

pull, drag

attract - to pull objects nearer; distract - to drag attention away from something; tractor - a motor vehicle that pulls things.

trans

across,beyond, through

transcontinental - across the continent; transfer - to move from one place to another; transport - to carry something across a space.

tri

three, once in every three,

third

triangle - a figure with 3 sides and 3 angles; triathlon - an athletic contest with 3 events; tricycle - a 3-wheeI vehicle with pedals.

ultra

beyond, extreme, more than

ultrahigh - extremely high; ultramodern - more modern than anything else; ultrasonic - sound waves beyond human hearing.

un

not,opposite of, lacking

unabridged - not shortened; unfair - opposite of fair; unfriendly - lacking friendliness.

uni

one, single

unicycle - a vehicle with one wheel; unilateral - decided by only one person or nation; unique - the only one of its kind; unison - as one voice.

urb

city

suburb - residential area on the edge of a city; urban - relating to a city; urbanology - the study of city life.

vac

empty

evacuate - to empty a dangerous place; vacant - empty, not occupied; vacation - a time without work.

ven/t

come

circumvent - to go around or bypass restrictions; convention - a gathering or assembly of people with a common interest; intervene -   to come between.

ver/I

truth

veracious - truthful, honest; veracity - the truth; verify - to make sure that something is true.

verb

word

verbalize - to put into words; adverb - a word relating to a verb; proverb - a short saying that expresses a well-known truth. 

vers,
vert

turn

reverse - to turn around; introvert - being turned towards the inside; version - a variation of an original; controversy - a conversation in which positions are turned against each other.

vice

acting in place of,

next in rank

vice-president - the person next in rank to the president

vid

see

evident clearly seen

vince,
vic

conquer

convince - to win someone over; invincible - not able to be conquered; victory - the conquest of an enemy.

vis, vid

see

vision - the ability to see; envision - to picture in the mind; evident - clearly visible.

viv/i
vit

live, life

revival - the act of bringing back to life; vital - pertaining to live; vivacious - high-spirited and full of life.

voc/i

voice, call

advocate - to speak in favor of; equivocate - to use misleading language that could be interpreted two different ways; vocalize - to produce with your voice.

vol/i/u

wish, will

benevolent - showing good will and kindness; volition - the act of making a choice or decision, voluntary - resulting from your own free will.

vor,
vour

eat

carnivorous - meat-eating; voracious - desiring or eating food in great quantities; devour - to eat quickly. 

xen/o

foreign

xenophobic - afraid of foreigners; xenogenesis - the creation of offspring that is completely different from either parent; xenophile - attracted to foreigners.

xer/o/I

dry

xerophyte - a plant that grows in dry climate; xerography - a dry photocopying process; xeric - requiring small amounts of moisture.

zo/o

animal life

zoology - study of animals; zooid - resembling an animal; zooplankton - minute floating aquatic animals.

zyg/o

pair

zygote - a cell formed by the union of two gametes and the organism developing from that; zygomorphic - pertaining to organisms that can be divided into symmetrical halves along one axis only.