<h2>Answer</h2>
Morphology
<h2>Explanation </h2>
Morphology is the study of word structure, how they form, and their relationships in a given language. Morphology tell us that words are made of smaller units called morphemes. A morpheme according to Zelig Harris is "Every sequence of phonemes which has meaning and which is not composed of smaller sequence having meaning, is a morpheme."
Morphemes combine hierarchically to form words; we usually use morphology threes to study the combination of morphemes into words.
The effect of the caste system is to create a society that has little social mobility.
Social mobility is the movement of individuals, families, or people of certain categories within a social strata in a society. Social mobility allows the social status of people to change relative to the social status of other people within the society.
Caste system limits or prohibits social mobility. You are already part of a caste even before you are born. Your caste is based on the caste of your parents and you are part of said caste until the day you die.