Prefixes are key morphemes in English vocabulary that begin words. The origin of the prefix poly- is from an ancient Greek word which meant “many.” This prefix appears in, well, “many” English vocabulary words, such as polysyllabic, polyhedron, and Polynesia. An easy way to remember that the prefix poly- means “many” is through the word polygon, which is a geometric figure, such as a square or pentagon, that has “many” angles.
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