Prefixes For Location, Time, Numbers

Front 1

Ec-, ecto-

Back 1

Out; outside

Front 2

End/o-

Back 2

In; within

Front 3

Mes/o

Back 3

Middle

Front 4

Dextr/o

Back 4

Right

Front 5

Ab-

Back 5

Away from

Front 6

Ad-

Back 6

Toward; near

Front 7

Dia-

Back 7

Through; complete

Front 8

Per-

Back 8

Through

Front 9

Trans-

Back 9

Through; across

Front 10

Infra-

Back 10

Below

Front 11

Inter-

Back 11

Between

Front 12

Ante-

Back 12

Before; forward

Front 13

Pre-

Back 13

Before; in front of

Front 14

Pro-

Back 14

Before; in front of

Front 15

Post-

Back 15

After; behind

Front 16

Mon/o

Back 16

One; single

Front 17

Bi-

Back 17

Two; twice

Front 18

Tri-

Back 18

Three

Front 19

Quadri-

Back 19

Four

Front 20

Poly-

Back 20

Many; much

Front 21

Epi-

Back 21

Upper

Front 22

Extra-

Back 22

Outside

Front 23

Hemi-

Back 23

Half

Front 24

Hypo-

Back 24

Beneath/ below/ deficient

Front 25

Kin/e

Back 25

Movement

Front 26

Meta-

Back 26

Beyond

Front 27

Pan-

Back 27

All

Front 28

Para-

Back 28

Beside/ near/ around/ abnormal

Front 29

Retro-

Back 29

Behind/ back of/ backward

Front 30

Semi-

Back 30

Half

Front 31

Semi-

Back 31

Half

Front 32

Sub-

Back 32

Under/ below/ beneath

Front 33

Uni-

Back 33

One

Front 34

Ultra-

Back 34

Above/ increased/ more than normal

Front 35

Hyper-

Back 35

Above/excessive