C. 2: What is Affixation? Affixation is a process of word formation by adding a prefix or suffix to a root word . Prefix : A prefix is a group of letters that is added to the beginning of a word. It can change the meaning of the word, such as in the words " un happy" and " mis place." Some common prefixes include: un -: meaning "not" (e.g., un happy, un fair) re -: meaning "again" or "back" (e.g., re write, re build) dis -: meaning "the opposite of" (e.g., dis agree, dis like) pre -: meaning "before" (e.g., pre view, pre face) in -: meaning "not" or "within" (e.g., in complete, in door). In the above content the root words are happy, fair, write, build, agree, like, view, face, complete, door. More Prefix: Root words Prefix Author co -author Necessary un necessary Fair un fair Moral im mo...