Prefixes I-Z

Front 1

-infra

Back 1

Below, beneath

Front 2

inter-

Back 2

Between

Front 3

intra-

Back 3

Within

Front 4

iso-

Back 4

Same, equal

Front 5

macro-

Back 5

Large

Front 6

mega-

Back 6

Large; million(th)

Front 7

mes-

Back 7

Middle

Front 8

meta-

Back 8

Beyond, after

Front 9

micro-

Back 9

Small; millionth

Front 10

milli-

Back 10

Thousandth

Front 11

mono-

Back 11

One (single)

Front 12

neo-

Back 12

New

Front 13

non-

Back 13

Not

Front 14

oligo-

Back 14

Few, scanty

Front 15

ortho-

Back 15

Straight; correct, normal

Front 16

para-

Back 16

By the side of; near

Front 17

per-

Back 17

Through

Front 18

peri-

Back 18

Around; surrounding

Front 19

poly-

Back 19

Many

Front 20

post-

Back 20

After

Front 21

pre-

Back 21

Before

Front 22

pro-

Back 22

First; promoting

Front 23

quadr-

Back 23

Four

Front 24

re-

Back 24

Back again

Front 25

retro-

Back 25

Behind

Front 26

semi-

Back 26

Half

Front 27

sub-

Back 27

Under

Front 28

super-, supra-

Back 28

Over, above, excessive

Front 29

trans-

Back 29

Across; through

Front 30

tri-

Back 30

Three; triple