e-, ex- 

out, out of, from

emit (verb) to send out

e + mit

en-, em-

put into

enamor (verb): to cause to love, to "put" someone "into" love

en + am + + or

upon, beside, over

epilogue (noun): the concluding section of a play or literary work

epi + logue

beyond

extraordinary (adjective): going beyond normal

extra + ordin + ary

il-, im-, in-, ir-

not, in

illegible (adjective): cannot be read

il + leg+ ible

in-, im-, il- 

in, into

import (verb): to bring into a country from another country

im + port

between, among

interject (verb): to throw something (a comment) between other things

inter + ject

intro- 

into

introspection (noun): to look into one's own thoughts and feelings

intro + spect + ion

mal-

bad

malfunction (noun): when something does not work properly

mal + funct + ion

wrong

misconduct (noun): wrong doing, bad behavior

mis + con + duct

mono-

one

monologue (noun): a dramatic performance or speech by one actor

mono + logue

many

multiply (verb): to increase in number

multi + ply

non- 

not, no

nonsense (noun): something that has no meaning or makes no sense

non + sense

ob-, oc-, of-, op- 

toward, against, in the way

obtain (verb): to gain or get, to get a hold of

ob + tain

excessive, above

overwork (verb): to have too much work

over + work