Common Prefixes

a-

without

ab-, abs-

away from

ad-

toward

alb-

white

allo-

other

ambi-

both

ampho-

both

an, ana-

without

ante-

before

anti-

opposed, against, counteract

auto-

self

bi-

two

bio-

life

brady-

slow

circum-

around

con-

together or with

contra-

against, opposed

dys-

painful, difficult

ecto-

outside

endo-

inside

epi-

upon, on

eu-

good

ex-

out, away from

hemi-

half

homeo-

likeness

homo-

same

hydro-

water

hyper-

above, high, excessive

hypo-

low, deficient, under

idio-

from one's self

im- in-

in, into, not

infra-

beneath

inter-

between

intra-

within

juxta-

beside

meso-

middle

meta-

after

milli-

one thousandth

mono-

single

multi-

many

neo-

new

nan-

all, wide

pan-

all, wide

para-

near, beyond, beside

per-

through

peri-

around

poly-

many

post-

after

pre-

before, in front of

primi-

first

pseudo-

FALSE

retro-

backward

rube-

red

semi-

half

sub-

beneath

supra-

above

tachy-

fast, rapid

trans-

across, through

tri-

three

ultra-

beyond

uni-

one

xero-

dry