This document discusses various morphological processes in word formation including addition, mutation, conversion, subtraction, and their effects on word class. It provides examples of how nouns, verbs, and adjectives are derived from each other through conversion or changes in meaning. Specific affixation processes are also described such as causative, inchoative, repetitive, and reversive prefixes. The effects of affixes like -ish, -less, and -ful on adjectives are explained. Finally, different types of derived nouns are defined such as action nouns, effect nouns, and place nouns.