1. Prefixes
8th grade

2. Prefixes
There are three different word parts – prefixes, roots, suffixes that are used to construct words.
If you know the meaning of the individual parts, you can figure out the meaning of a word.
Ex: invisible
Prefix – in means “not”
Root – vis means “to see”
Suffix – ible means “capable of being seen”
Word – invisible means “not capable of being seen”

3. Inter – interchange Definition – among, between
Example - interaction, intercede

4. Intra - intramural Definition – within
Example - intrastate, intravenous

5. Ir - irregular
Definition – not
Example - irresponsible

6. Mal - malfunction
Definition – wrong, bad
Example - maladjusted

7. Ob - obstacle
Definition – against
Example - object, obstruct

8. Per - percolate
Definition – through
Example - perceive, permit

9. Post - postgraduate Definition – after
Example - postglacial, posterior

10. Pre preamble
Definition - before
Example - prearrange, precaution

11. Pro - prognosis Definition – before, for, in support of, forward
Example - program, prologue, proceed, produce

12. Re recall
Definition – back, again
Example - recede, reflect

13. Retro retroactive
Definition – backward
Example - retrospect,

14. Se secure
Definition – apart
Example – secede, secession,

15. Self - self-taught Definition – of the self
Example – self-worth, self-respect, self-employed

16. semi - semicircle Definition – half, partly
Example – semiformal, semifinal

17. super - superhuman Definition – over, above
Example – superior, supernatural

18. Trans - transatlantic Definition – across, over
Example – transcribe, transportation

19. Ultra - ultramodern
Definition – extremely
Example – ultraliberal