ante-

before

i.e.: antebellum, antecedent, 

anterior

be-

to, completely

i.e.: belittle, befriend, 

bejeweled

bene-

good, well

i.e.: beneficial, benefit, 

benediction, benevolent

circum-

around, about

i.e.: circumference, circumvent

co-, com-, con-, col-

together, with

i.e.: cooperate, copilot, 

committee, commit, concur, 

concert, collide, collaborate

dia-

accross, through

i.e.: diagonal, diameter, 

diagnostic

ex-

out, from

i.e.: expel, excavate, exhale

homo-

same, alike

i.e.: homonym, homogenize, 

homophone

hyper-

over, above, excessive

i.e.: hyperactive, 

hyperventilate, hypercritical, hyperthermia

mal-

bad, evil

i.e.: malicious, maladjusted, 

malnutrition

micro- 

small

i.e.: microscopic, microcosm, 

microbiology, microwave

multi-

many, much

i.e.: multiply, multigrain, 

multiple

para-

beside, alongside

i.e.: paraprofessional, paralegal

poly-

many, much

i.e.: polygon, polyester

post-

after, behind

i.e.: postwar, posterior, 

postdate

pro-

forward, earlier, prior to

i.e.: project, proceed, progress

retro-

back, backward

i.e.: retroactive, retrogression

tele-

distant

i.e.: telephone, telegraph, 

television

therm-

heat, warm

i.e. thermostat, thermal

trans-

across, move between

i.e. transatlantic, transcend, 

transfer, transact, transport

uni-

one, single

i.e. universe, unicycle, unicorn