Prefixes 1-40 currently
A
Without, lacking
An
Without, lack of
Ab
from, away
ad
To, towards, near
Ambi
Both, both sides
An
Not, without, lacking
Ante
Before, in front of, Ahead of
Anti
Against
Bi
Twice, both, double
Bio
Life
Brady
slow
Circum
Around, about
Contra
Against, counter
Cryo
Cold
Di
Double, twice
Diplo
Double, in pairs
Dys
Difficult, painful, bad
Ecto
outer, outside
Endo
Within, innermost
Epi
Upon, over, and under
Eu
well, easy, normal
Hemi
half
Hyper
excessive, high, over, increased, more than normal
Hypo
Decreased, deficient, low, under, less than normal
Inter
Between, among
Intra
Within, into, inside
Later
side
Lipo
fat, lipids
Mal
Bad, abnormal, disordered, poor
Macro
large
mega
large, enlarged
Mega
large, enlarged
Mes
middle, midline
Micro
small
mono
one, single
Neo
New
ortho
normal, straight
Pan
all, complete, entire
Peri
around
Poly
Many, much