Common root words and prefixes for SAT

Prefix: a

Example: apathy, amoral, asymmetrical

without

Prefix: ab

Examples: Absent, Abduct, Abnormal, Abort

Away

Suffix: -cious, -uous

Examples: vivacious, voluptuous

abounding in

Root: Acu

Examples: acute, acupressure, acupuncture, acuity

Sharp

Root: agri

Example: agriculture, agrarian

farming

Root: alb

Examples: albino, albumen, albacore

White

Prefix: amb

Examples: ambivalent, ambiguous, ambidextrous

both

Root: ambul

Examples: amble, ambulance, ambulant

walk, move

Root: Amic

Examples: amicable, amicably, dynamic

friendly

Prefix: ana

Examples: anachronism, anabasis

back

Prefix: anti(ant)

Examples: antagonist, antidote, antibiotics

against, opposite

Root: arche(archi)

Examples: archaic, archaeology, archive

primitive, origin

Root: auto

Examples: autopilot, autonomous, autocratic

self

Root: bel

Examples: rebel, antebellum, bellicose

war, fight

Root: bene

Examples: benefit, benign, benevolent, benefactor

good

Prefix: bi

Examples: bicycle, biceps, biscotti, biweekly

two

Root: cata

Examples: cataclysm, catastrophic, catalog

intensive, according to

Root: cede(cess, ced)

Examples: recede, exceed, recession

go, withdraw

Suffix: ceive

Examples: receive, perceive, reconceive

take

Root: cent

Examples: centennial, century, percent

hundered

Root: cerebr

Examples: cerebral, cerebrate

brain

Root: cert

Examples: certain, ascertain, certify

sure

Root: chron

Examples: chronicle, chronology, anachronism

time

Root: cide

Examples: genocide, pesticide

kill

Root: circum

Examples: circumference, circumstance

Around

Root: clam(claim)

Examples: exclaim, clamor, proclaim

shout, speak

Root: clar

Examples: clarify, clarification, declare

clear

Root: clud(clus)

Examples: conclusion, seclude, conclude

close

Root: clinic(cline)

Examples: inclination, incline, recline

Lean

Prefix: co

Examples: coauthor, cosign, collaborate, cooperate

with, together, joint

Root: cog

Examples: cognitive, incognito, cognition

know

Prefix: Con

Examples: connect, convention, concur

together, common

Prefix: contra

Examples: contraband, contrary

against

Roo: corp

Examples: corporations, corpse, corporal

body

Prefix: counter

Example: counteract, counterintuitive, counteroffer

opposing, contrary

Suffix: cracy(crat)

Examples: democracy, democrat, theocracy, bureaucracy

rule

Root: cred

Example: incredible, credit, credulous, credence

believe

Root: crypt

Example: cryptic, encrypt

hidden, secret

Root: culp

Example: culpable, exculpate, culprit

blame, fault

Root: cumul

Example: accumulate, cumulative

mass, heap

Root: dem

Example: democracy, demographics

people

Prefix: di

Example: dilemma, diverse, dioxide

twice, two

Prefix: dia

Example: dialogue, diameter, diagnosis

across, through

Root: domin

Example: dominate, predominate, domineering

master

Root: don

Example: donate, pardon, donor

give

Root: dorm

Example: dormitory, dormant, dormer

Sleep

Root: dur

Example: durable, duration, endure

harden, long lasting

Root: dyn

Example: dynamite, dynamic

power, energy

Suffix: ence(ance)

Example: performance, conference, insurance

state, condition

Root: esth(aesth)

Example: esthetician, aesthetic, kinesthesia

beauty, feeling

Root: ethn

Example: ethnicity, ethnology, ethnocentric

nation, race

Prefix: eu

Examples: euphemism, euphoria

good, well

Prefix: ex

Examples: exit, ex-girlfriend, exterminate, extract

out, former

Prefix: extra

Example: extraordinary, extraterrestrial, extravagance

beyond

Suffix: fer

Examples: transfer, ferry, conifer, confer

carry, bring

Root: fid

Examples: confidence, fidelity

trust

Root: flect(flex)

Examples: reflect, flexible, inflect, deflect

bend

Root: fore

Examples: before, therefore, forebode, forecast

in front of, previous

Root: fusc

Examples: obfuscation, infuscate, subfuscous, fuscous

dark

Root: ger

Examples: geriatrics, gerontology

old age

Root: grad(gress)

Examples: digress, gradual, graduate

to step, to go

Root: gyn

Examples: gynecology, androgynous, misogyny

woman

Prefix: homo(homeo)

Examples: homogeneous, homonym, homeopath

same, alike

Prefix: hyper

Examples: hyperactive, hyperventilate

over, beyond

Prefix: hypo

Examples: hypothermic, hypothesis, hypoglycemia

under

Suffix: ian

Examples: librarian, historian, pedestrian

related to

Root: idio

Examples: idiotic, idiomatic

peculiar, distinct

Prefix: in/im

Examples: incapable, incomplete, informal, imperfect

not

Prefix: infra

Examples: infrastructure, infrared

beneath

Prefix: inter

Examples: interview, international, interstate

between

Prefix: ir

Examples: irrational, irredeemable, irrelevant, irregular

not

Prefix: iso

Example: isobar, isometric

equal

Root: lab

Examples: elaborate, laboratory, laborious, labor, collaborate

work

Root: lat

Examples: dilate, latitude

broad, wide

Root: laud

Examples: laudably, applause, applaud

praise

Root: lex

Examples: lexicology, dyslexic, alexia, lexicon

word, law

Root: loq

Examples: loquacious, eloquent, colloquialism

speech

Root: luc

Examples: elucidate, lucid, translucent

light

Prefix: macro

Examples: macroeconomics, macronutrients, macroevolution

large, great

Root: mal

Examples: malignant, maltreat, malfeasance, malicious

bad, evil

Root: medi

Examples: mediocre, medium, medieval

middle

Root: melan

Examples: melancholy, melanoma, melodrama

black, dark

Prefix: meta

Examples: metaphysics, metamorphosis, metastasis

change, beyond, after

Prefix: micro

Examples: microscope, micronutrient

small

Root: migr

Examples: immigrant, emigrate, migrant, migration

move

Prefix: min

Examples: minimum, miniature, miniscule, minute

small

Prefix: mis

Examples: mistake, misinterpret, misogynist

wrong, bad

Root: miss(mit)

Examples: remit, dismiss, missle, emit

send, cast

Prefix: mono

Examples: monotheism, monodiglyrecide

one

Root: mort

Examples: mortuary, immortal, mortify

death

Root: nat

Examples: innate, natural, natal

born

Root: neg

Examples: negate, negative, renege

no

Prefix: neo

Examples: neophyte, neonatal, neologistic, neocolonialism

new

Root: nov

Examples: novice, renovate, novelty

new

Root: null

Examples: nullify, nullification, nulliparity

none

Prefix: ob(op)

Examples: object, objection, opposition, obscure

in the way, against

Prefix: omnipotent, omniscient, omnivorous

all

Root: opt

Examples: optimal, optimum, optimize

best

Suffix: ous

Examples: adventurous, hazardous, nauseous, joyous

having

Root: oxy

Examples: oxymoron, oxidize

sharp