prefixes and suffixes are letters that are added to the beginning or end of a word... it is added to make a new meaning of a word .
prefix: word prefix new word
happy -un unhappy
educated -un uneducated
act -inter interact
sense -non nonsense
friendly -un unfriendly
suffix : word suffix new word
care -ful careful
beauty -ful beautiful
infinite -ty infinity
believe -able believable
quick -ly quickly
:)