
Affixes and roots
Adding affixes
to existing words (the base or root) to form new words is common in academic
English. Prefixes are added to the front of the base (like
dislike),
whereas suffixes are added to the end of the base (active
activate).
Prefixes usually do not change the class of the base word, but suffixes usually
do change the class of the word.
The most common
prefixes used to form new verbs in academic English are: re-,
dis-,...