Combining Form: Prefix

Front 1

a-, an-

Back 1

No, not, without

Front 2

Aut-, auto-

Back 2

Self, own

Front 3

Dia-

Back 3

Through complete

Front 4

End-, endo

Back 4

Within

Front 5

Epi

Back 5

Above,upon

Front 6

Ex-, exo

Back 6

Out, outside of, outward

Front 7

Hyper-

Back 7

Excessive, above, more than normal

Front 8

Hypo-

Back 8

Deficient, below, under, less than normal

Front 9

In-

Back 9

Into, in

Front 10

Peri-

Back 10

Surrounding, around

Front 11

Pro-

Back 11

Before, forward

Front 12

Re-

Back 12

Back, backward, again

Front 13

Retro-

Back 13

Behind

Front 14

Sub-

Back 14

Below, under

Front 15

Trans-

Back 15

Across, through

Front 16

Ana-

Back 16

Up

Front 17

Cata-

Back 17

Down

Front 18

Epi-

Back 18

Above

Front 19

Hypo-

Back 19

Below

Front 20

Inter-

Back 20

Between

Front 21

Meta-

Back 21

Change