Latin Prefix/ Greek Prefix

Meaning

a-, an-

"alpha privative", a negative

ab-

away from

ad-

to, towards, near

ambi-

both

ana-

up, back again, throughout, against

ante-

before, in front of

anti-

against

apo-

away from

bi-/bis-

twice, double

cata-

down, across, under

circum-

around

con-

with

contra-

against

de-

down, from, away from

di-

two, twice, double

dia-

through

dis-

apart, removed

dys-

hard, difficult, bad

e-, ex- (Lat.)
ec- ex- (Gk.)

out of

ecto-

outside

exo-

outside, outward

en-

in

endo-

within

epi-

on, upon

extra-

outside, beyond, in addition to

eu-

well, good, easy

hemi-

half

hyper-

over, above,

hypo-

below, under

in-

in, into, on
You often see this prefix as im.
Used wtih verbal roots.

in-

not; occasionally, beyond belief

infra-

below

inter-

between

intro-

within

intus-

within

meta-

with, after, beyond

non-

not

opistho-

behind

palin-

again

para-

along side of, beside

per-

through, thorough, complete

peri-

around, near

post-

after, behind

pre-

in front of, before

pro-

before, in front of

proso-

onwards, in front

re-

back, again

retro-

backward

semi-

half

sub-

under, below

super-, supra-

above, upper

syn-

with

trans-

across

ultra-

beyond