SAT Root Words

a

prefix, without (ex: apathy)

ab

prefix, away (ex: abduct)

-cious, -uous

suffix, abounding in (ex: vivacious)

acu

root, sharp (ex: acute)

agri

root, farming (ex: agrarian)

alb

root, white (ex: albino)

amb

prefix, both (ex: ambiguous)

ambul

root, walk/ move (ex: ambulance)

amic

root, friendly (ex: amicable)

ana

prefix, back (ex: anabasis)

anti (ant)

prefix, against/opposite (ex: antagonist)

arche (archi)

root, primitive/origin (ex: archaeology)

auto

root, self (autopilot)

bel

root, war/fight (ex: rebel)

bene

root, good (ex: beneficiary)

bi

prefix, two (ex: bicycle)

cata

root, intensive/according to (ex: catastrophic)

cede (cess, ced)

root, withdraw/go (ex: recede)

ceive

suffix, take (ex: percieve)

cent

root, hundred (ex: century)

cerebr

root, brain (ex: cerebral)

cert

root, sure (ex: ascertain)

chron

root, time (ex: chronicle)

cide

root, kill (ex: pesticide)

circum

root, around (ex: circumfrence)

clam (claim)

root, shout/speak (ex: exclaim)

clar

root, clear (ex: clarify)

clud (clus)

root, close (ex: conclusion)

clin (cline)

root, lean (ex: inclination)

co

prefix, with/together (ex: coexist)

cog

root, know (ex: cognitive)

con

prefix, together/common (ex: connect)

contra

prefix, against (ex: contrast)

corp

root, body (ex: corporation)

counter

prefix, opposing/contrary (ex: counteract)

cracy (crat)

suffix, rule (ex: democracy)

cred

root, believe (ex: credibility)

crypt

root, hidden/secret (ex: cryptic)

culp

root, blame/fault (culpable)

cumul

root, mass/heap (ex: cumulative)

dem

root, people (ex: democratic)

di

prefix, twice/two (ex: dihybrid)

dia

prefix, across/through (ex: diameter)

domin

root, master (ex: dominate)

don

root, give (donate)

dorm

root, sleep (ex: dormant)

dur

root, harden/long-lasting (ex: durable)

dyn

root, power/energy (ex: dynamite)

ence (ance)

suffix, state/condition (performance)

esth (aesth)

root, beauty/feeling (ex: esthestician)

ethn

root, nation/race (ex: ethnicity)

eu

prefix, good/well (ex: euphemism)

ex

prefix, out/former (ex: exit)

extra

prefix, beyond (ex: extraordinary)

fer

suffix, carry/bring (ex: chauffer)

fid

root, trust (ex: confidence)

flect (flex)

root, bend (ex: reflect)

fore

root, in front of/previous (ex: therefore)

fusc

root, dark (ex: obfuscation)

ger

root, old age (ex: geriatrics)

grad (gress)

root, to step/to go (ex: digress)

gyn

root, woman (ex: gynecology)

homo (homeo)

prefix, same/alike (ex: homozygous)

hyper

prefix, over/beyond (ex: hyperpigmentation)

hypo

prefix, under (ex: hypothermic)

ian

suffix, related to (ex: librarian)

idio

root, peculiar/distinct (ex: idiotic)

in/im

prefix, not (ex: impossible)

infra

prefix, beneath (ex: infrastructure)

inter

prefix, between (ex: interview)

ir

prefix, not (ex: irrational)

iso

prefix, equal (ex: isometric)

lab

root, work (ex: elaborate)

lat

root, broad/wide (ex: lateral)

laud

root, praise (ex: laudably)

lex

root, word/law (ex: lexicology)

loq

root, speech (ex: loquacious)

luc

root, light (ex: lucid)

macro

prefix, large/great (ex: macroeconomics)

mal

root, bad/evil (ex: malicious)

medi

root, middle (ex: mediocre)

melan

root, black/dark (ex: melancholy)

meta

prefix, change/beyond/after (ex: metaphysics)

micro

prefix, small (ex: microscope)

migr

root, move (ex: immigrant)

min

prefix, small (ex: minute)

mis

prefix, wrong/bad (ex: misuse)

miss (mit)

root, send/cast (ex: dismiss)

mono

prefix, one (ex: monochromatic)

mort

root, death (ex: immortal)

nat

root, born (ex: natural)

neg

root, no (ex: negative)

neo

prefix, new (ex: neocolonialism)

nov

root, new (ex: renovate)

null

root, none (ex: nullification)

ob (op)

prefix, in the way/against (ex: objection)

omni

prefix, all (ex: omnipotent)

opt

root, best (ex: optimal)

ous

suffix, having (ex: adventurous)