Definitions

Morphology is the classification, the derivation, and the various modifications of words.
Morphology is also known as Etymology.

Classes of Words

A word can be defined as a sign of an idea. Words have both spoken and written forms. Based on their meaning and use, words are divided into eight classes that are called the Parts of Speech.  Words in five of these eight classes each display several different forms depending on how the word is being used.

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