Answer:
Affixes are morphemes that can be attached to a word in an attempt to form a new one. There are two types of affixes: prefixes -added to the front of the word- and suffixes -added to the back. In the case of the word tumultuous, the affixes -non, -ly and -ness can be added so as to form tumultuously, tumultuousness, nontumultuous or nontumultuously.
