Hemi
Half
Para
Beside / Near
Septo
Dividing Wall
Chole
Bile
Electro
Electrical Activity
a, an-
Without
Ad
Toward
Ex: addiction
Ante
Before
Ex: antepartum
Anti
Against
Ex: antiseptic
Bi
Two/ both sides
Dis
Apart, away
Dys
Painful
Endo
Within
Extra
Outside
Hyper
Above, excessive
Hypo
Below,deficient
Inter
Between
Intra
Within, inside
Neo
New
Per
Through
Peri
Around, about
Post
After
Pre
Before
Sub
Under, beneath