Affixes
- A prefix is added before a word (un-, re-, dis-): unkind, rewrite.
- A suffix is added after a word (-ful, -less, -ment): careful, hopeless.
- Affixes change meaning or word class.
Key idea
Prefixes (un-, re-) and suffixes (-ful, -less) are added to words to change their meaning or class.
Remember
A prefix goes before the root; a suffix goes after.