Positions Or Directions Prefixes

Front 1

Ab-

Back 1

Away from

Front 2

Ad-

Back 2

Toward

Front 3

Ante-

Pre-

Back 3

Before (in place or in time)

Front 4

Circum-

Peri-

Back 4

Around

Front 5

Contra-

Back 5

Against or oppose

Front 6

Dia-

Back 6

Through

Front 7

Ecto-

Ex-

Exo-

Extra-

Back 7

Outside, without, away from

Front 8

En-

End-

Endo-

Back 8

Inside

Front 9

Epi-

Back 9

Above

Front 10

Hypo-

Infra-

Sub-

Back 10

Beneath, under

Front 11

Inter-

Back 11

Between

Front 12

Intra-

Back 12

Within

Front 13

Ipsi-

Back 13

The same

Front 14

Meso-

Mid-

Back 14

Middle

Front 15

Para-

Back 15

Near, besides, or abnormal

Front 16

Per-

Back 16

Through or by

Front 17

Post-

Back 17

Behind, after

Front 18

Ret

Back 18

Behind, backward

Front 19

Super-

Supra-

Back 19

Above, beyond

Front 20

Syn-

Sym-

Back 20

Joined, together

Front 21

Trans-

Back 21

Across