Latin Prefixes Study Guide

1. a, ab

away, from

avert, abduct

2. ad

to

admit

3. ante

before

anteroom

4. bi

two

bicycle

5. circum

around

circumnavigate

6. con, col, com, cor

together, with

conspire, colloquy, compose, correspond

7. contra

against

contradict

8. de

from, down

deduction, demote

9. dis

apart, away

disrupt, dismiss

10. e, ex

out

emit, expel

11. extra

beyond

extraordinary

12. in, il, im, ir

not

insignificant, illegal, immoral, irregular

13. in, il, im, ir

in, into, on

inject, illuminate, import, irrigate

14. inter

between

interrupt

15. intra

within

intramural

16. ob

against

obloquy

17. per

through, thoroughly

perennial, pervert

18. post

after

postwar

19. pre

before

premonition, prelude

20. preter

beyond

preterhuman

21. pro

forward

progressive

22. re

again, back

revive, retort

23. retro

backward

retrogression

24. se

apart

secede

25. semi

half

semicircle

26. sub

under

submerge, subway

27. super

above

supernatural

28. trans

across, through

transcontinental, transmit

29. ultra

beyond, exceedingly

ultraconservative

30. vice

in place of

vice-president