Prefix
a-, an-, in-
Without,negative
From, away from to, toward
ab-
Co-, com-, con-
with, together
Against
Contra-
end-, endo-
within
ad-, ac, as-, at-
To, toward
Before, in front
Ante-
De-
Down from
right
Dextr-
Epi-
upon
anti-, ant-,ob
Against
Two or life
bi-,bio
Dia-
Through
Bad, difficult
Dys-
Eu-
Good
brachy-
Short
Slow
Brady-,
Dis-
Apart
Out, out from
E-, ex-
Hemi-, semi-
Half
Cent-,
Hundred
Around
Circum-
Ect-, exo-, extra-
Outside
In, on
En-
Hyper-
Over, above