ex-

e-

ec-

ef-

= out or from

ex-clude

e-ject

ec-centric

ef-flux

to shut out.

to cast out.

from the center.

a flowing out.

extra-

= beyond

extra-ordinary

beyond ordinary.

in-

il-

im-

ir-

en-, em-

(in nouns and

verbs)

= in, into, on

in-clude

il-luminate

im-port

ir-rigate

en-force

to shut in.

to throw light on.

to carry in.

to pour water on.

to force on.

in-

i(n)

il-

im-

ir-

(in adjectives

and nouns.)

= not

in-sane

i-gnoble

il-legal

im-mature

ir-regular

not sane.

not noble.

not legal.

not mature.

not regular.

inter-

intel-

= between or

among

inter-cede

intel-ligent

to go between.

choosing between.

intra-

= inside of

intra-mural

inside of the walls.

intro-

= within, into

intro-duce

to lead into

juxta-

= near

juxta-position

a placing near

non-

= not

non-combatant

not fighting.

ob-

o-

oc-

of-

op-

in the way,

= against,

or out

ob-ject

o-mit

oc-cur

of-fend

op-pose

to throw against.

to leave out.

to run against;

hence, to happen.

to strike against.

to put one's self against.

per-

pel-

= through,

thoroughly

per-vade;

per-fect

pel-lucid

to pass through;

thoroughly made.

thoroughly clear.

post-

= after,

behind

post-script

written after.

pre-

= before

pre-cede

to go before.