A-, an-
Without, lack of, not
Anti-
Against, opposing
Brady-
Abnormally slow
De-
Down, from
Dys-
Difficulty
Ep-, epi
Over, Upon, On
Eu- (yoo)
Good, Normal
Hyper-
Excessive, abnormally high
Hypo-
Insufficient, abnormally low
Iso-
Equal
Mal-
Bad, poor
Multi-
Many
Neo-
New
Pan-
All
Peri-
Surrounding
Poly-
Many, much, multiple
Post-
After
Tachy-
Abnormally fast
Uni-
One, Single