44 Key Medical and English Prefixes

a, an, ir-, ar-

without, lack of, no-, not

ab-, ef-

away from

ad-, af-

to, toward

ambi-

both, double, two

ana-

apart, up, back, again.

ante-

before, in front of

anti-

against, reversed

bi-, bin-, di-, diplo-, co-

two, twice, double

cata-

down, under, against

circum-

around, about, circle

com-, con-, co-

together, with, both (two)

contra-

against, opposite

de-

away from, remove

dia-

across, complete, between, total, apart, through

dis-

apart or away from, reverse

e-

out, to remove, protrude

Ec-

out from, out

ecto-

on outer side, situated on

em-, en-

in, within

endo-

Within

epi-

Upon, on

ех-, ехо-

upon, on, outside, on outer side, outer layer, protrude

extra-

outside

hyper-

excessive, over, above. more

hypo-

under, below, deficient, low, less, lesser

im-, in-

in, into, or not

infra-

below, under

inter-

between

intra-

within

intro- into-

within, in, into, inward

meta-

beyond, after, change

para-

beside, near, beyond

per-

through, excessive, in

peri-

around

post-

after, behind

pre-, pro-

before, in front of

re-

back, again, contrary

retro-

backward, behind

sub-

under, low, beneath

super-

above, upper, upon, excessive

supra-

above, upper, upon, excessive

sym-, syn-

together, with

trans-

across, through, beyond

ultra-

beyond, in excess