What is the difference between a suffix and a prefix?

"Before" and "After", prefix starts a word, suffix finishes it! Examples given by Nudrat, above.l

Prefix that come before base form un faith re turn per ceive un re and per are prefixes suffixes that come after the base form want ed faith full turn ing here ed full and ing are suffixes

Suffixes and prefixes are called affixes in grammar. The purpose of affixes is to change a meaning of a word "Root".

 

A suffix is added to the root of a word to change its meaning; for example: without and before. A prefix on the other hand is added to the begining of a word; for example: incapable and prefix. 

 

Sometimes, prefixes are hyphenated.