Roots and Affixes

The root is the base word to which other parts or affixes are added.

There are two types of affixes: Prefixes and suffixes.

The affixes and root appear in the following order: P-R-S

Prefix  –   Root  –   Suffix

The root and affix combinations change the meaning of the word.

Some Examples

welcome = well received

un-welcome = not welcome

un-welcom-ed = not welcomed

possible = that can be done

im-possible = not possible

im-possib-ility = state of not being possible

view = to see

pre-view = view beforehand

pre-view-able = able to be viewed beforehand

Most Common Prefixes

un-
not, opposite of
unhappy, unprofessional

re-
again, back
return, review

in, im, ir, il
not, opposite of
indirect, impossible, irregular, illegal

dis-
not, opposite of
nonfiction, nonsense

in-, im-
in or into
inside