SAT Roots, Prefixes and Suffixes

a (Prefix)

without (apathy, amoral, asymmetrical)

ab (Prefix)

away (absent, abduct, abnormal, abort)

-cious, -uous (Suffix)

abounding in (vivacious, voluptuous)

acu (Root)

sharp (acute, acupressure, acupuncture, acuity)

agri (Root)

farming (agriculture, agrarian)

alb (Root)

white (albino, albumen, albacore)

amb (Prefix)

both (ambivalent, ambiguous, ambidextrous)

ambul (Root)

walk, move (amble, ambulance, ambulant)

amic (Root)

friendly (amicable, amicably, dynamic)

ana (Prefix)

back (anachronism, anabasis)

anti (ant) (Prefix)

against, opposite (antagonist, antidote, antibiotics)

arche (archi) (Root)

primitive, origin (archaic, archaeology, archive)

auto (Root)

self (autopilot, autonomous, autocratic)

bel (Root)

war, fight (rebel, antebellum, bellicose)

bene (Root)

good (benefit, benign, benevolent, benefactor)

bi (Prefix)

two (bicycle, biceps, biscotti, biweekly)

cata (Root)

intensive, according to (cataclysm, catastrophic, catalog)

cede (cess, ced) (Root)

go, withdraw (recede, exceed, recession)

ceive (Suffix)

take (receive, perceive, reconceive)

cent (Root)

hundred (centennial, century, percent)

cerebr (Root)

brain (cerebral, cerebrate)

cert (Root)

sure (certain, ascertain, certify)

chron (Root)

time (chronicle, chronology, anachronism)

cide (Root)

kill (genocide, pesticide)

circum (Root)

around (circumference, circumstance)

clam (claim) (Root)

shout, speak (exclaim, clamor, proclaim)

clar (Root)

clear (clarify, clarification, declare)

clud (clus) (Root)

close (conclusion, seclude, conclude)

clin (cline) (Root)

lean (inclination, incline, recline)

co (Prefix)

with, together, joint (coauthor, cosign, collaborate, cooperate)

cog (Root)

know (cognitive, incognito, cognition)

con (Prefix)

together, common (connect, convention, concur)

contra (Prefix)

against (contraband, contrary)

corp (Root)

body (corporation, corpse, corporal)

counter (Prefix)

opposing, contrary (counteract, counterintuitive, counteroffer)

cracy (crat) (Suffix)

rule (democracy, democrat, theocracy, bureaucracy)

cred (Root)

believe (incredible, credit, credulous, credence)

crypt (Root)

hidden, secret (cryptic, encrypt)

culp (Root)

blame, fault (culpable, exculpate, culprit)

cumul (Root)

mass, heap (accumulate, cumulative)

dem (Root)

people (democracy, demographics)

di (Prefix)

twice, two (dilemma, diverse, dioxide)

dia (Prefix)

across, through (dialogue, diameter, diagnosis)

domin (Root)

master (dominate, predominate, dominerring)

don (Root)

give (donate, pardon, donor)

dorm (Root)

sleep (dormitory, dormant, dormer)

dur (Root)

harden, long lasting (durable, duration, endure)

dyn (Root)

power, energy (dynamite, dynamic)

ence (ance) (Suffix)

state, condition (performance, conference, insurance)

esth (aesth) (Root)

beauty, feeling (esthetician, aesthetic, kinesthesia)

ethn (Root)

nation, race (ethnicity, ethnology, ethnocentric)

eu (Prefix)

good, well (euphemism, euphoria)

ex (Prefix)

out, former (exit, ex-girlfriend, exterminate, extract)

extra (Prefix)

beyond (extraordinary, extraterrestrial, extravagance)

fer (Suffix)

carry, bring (transfer, ferry, conifer, confer)

fid (Root)

trust (confidence, fidelity)

flect (flex) (Root)

bend (reflect, flexible, inflect, deflect)

fore (Root)

in front of, previous (before, therefore, forebode, forecast)

fusc (Root)

dark (obfuscation, infuscate, subfuscous, fuscous)

ger (Root)

old age (geriatrics, gerontology)

grad (gress) (Root)

to step, to go (digress, gradual, graduate)

gyn (Root)

woman (gynecology, androgyny, misogyny)

homo (homeo) (Prefix)

same, alike (homogeneous, homonym, homeopath)

hyper (Prefix)

over, beyond (hyperactive, hyperventilate)

hypo (Prefix)

under (hypothermic, hypothermia, hypoglycemia)

ian (Suffix)

related to (librarian, historian, pedestrian)

idio (Root)

peculiar, distinct (idiotic, idiomatic)

in/im (Prefix)

not (incapable, incomplete, informal, imperfect)

infra (Prefix)

beneath (infrastructure, infrared)

inter (Prefix)

between (interview, international, interstate)

ir (Prefix)

not (irrational, irredeemable, irrelevant, irregular)

iso (Prefix)

equal (isobar, isometric)

lab (Root)

work (elaborate, laboratory, laborious, labor, collaborate)

lat (Root)

broad, wide (dilate, latitude)

laud (Root)

praise (laudably, applause, applaud)

lex (Root)

word, law (lexicology, dyslexic, alexia, lexicon)

loq (Root)

speech (loquacious, eloquent, colloquialism)

luc (Root)

light (elucidate, lucid, translucent)

macro (Prefix)

large, great (macroeconomics, macronutrients, macroevolution)

mal (Root)

bad, evil (malignant, maltreat, malfeasance, malicious)

medi (Root)

middle (mediocre, medium, medieval)

melan (Root)

black, dark (melancholy, melanoma, melodrama)

meta (Prefix)

change, beyond, after (metaphysics, metamorphosis, metastasis)

micro (Prefix)

small (microscope, micronutrient)

migr (Root)

move (immigrant, emigrate, migrant, migration)

min (Root)

small (minimum, miniature, miniscule, minute)

mis (Prefix)

wrong, bad (mistake, misinterpret, misogynist)

miss (mit) (Root)

send, cast (remit, dismiss, missle, emit)

mono (Prefix)

one (monotheism, monodiglyceride)

mort (Root)

death (mortuary, immortal, mortify)

nat (Root)

born (innate, natural, natal)

neg (Root)

no (negate, negative, renege)

neo (Prefix)

new (neophyte, neonatal, neologistic, neocolonialism)

nov (Root)

new (novice, renovate, novelty)

null (Root)

none (nullify, nullification, nulliparity)

ob (op) (Prefix)

in the way, against (object, objection, opposition, obscure)

omni (Prefix)

all (omnipotent, omniscient, omnivorous)

opt (Root)

best (optimal, optimum, optimize)

ous (Suffix)

having (adventurous, hazardous, nauseous, joyous)

oxy (Root)

sharp (oxymoron, oxidize)