Prefixes, Suffixes, and Roots

un-

not or opposite of

re-

again or back/ backwards

in-; im-; ir-; il-

Not

dis-

not; opposite; or remove

en-; em-

put or go into or onto; to cause to be

non-

not

in-; im-

into; inside; within

over-

above; too much

mis-

bad; wrong; failure; lack

sub-

below; under; less than complete

pre-

before; prior to

inter-

between; among

fore-

before; in front of

de-

make opposite of; remove; reduce

trans-

across; beyond; change; through

super-

above; over; superior; excessive

semi-

half; partial

anti-

opposite; counteracting

mid-

middle

under-

beneath; below; less in degree

one

mono

two

di

three

tri

four

tetra

five

penta

six

hexa

eight

octo

ten

deca

hundred

cent

thousand

kilo; mille

many

poly; multi

-able/-ible

capable of

-al/-ial

pertaining to

-ance

state or condition

-ant

one who (job)

-arium

a place for

-ate

quality of; to act upon

-cian

one who

-ee/-eer

one who

-ent

causing an action; one who

-er/-or

one who; that which

-ful

full of

-ic

relating to or marked by

-ion/-tion/-sion

a thing; noun; condition of

-ish

pertaining to; being

-ism

belief system; doctrine; practice

-ist

believer in a system

-ity

state or quality of being

-ive/-tive/-ative

performing or tending toward a specific action

-ize

to cause to be or make

-less

without

-logy/-ology

study of

-ly

resembling or having the quality of

-ment

result of an action or process

-ness

quality or state of

-ous/-ious/-cious

full of, having

aero

air

anthropo

human being

astro

star

auto

self

biblio

book

bio

life

chron

time

crat

rule

dem

people

geo

earth

graph

write; record

homo

similar

hydro

water; liquid

macro

large

micro

small

meter

measure

pathos

feelings of pity or sorrow

phone

sound

photo

light

psych

mind

scope

instrument for observing

tele

distance

theo

god related to a deity or religion

therm

heat

amicus

friend

aqua

water  

aud

hear

bat

to beat

cred

believe

fend

to ward off

fid

trust, have faith

flect

bend

form

shape

grad

step  

grat

pleasing

jud/jur/jus

law

lumen

light

mis/mit

send

mort

to die

ped

foot

pel, puls

push, drive

plac

make calm

port

carry

rupt

break