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DEFINITION Definition & Meaning - Merriam-Webster
Middle English diffinicioun, borrowed from Anglo-French diffiniciun, definiciun, borrowed from Latin dēfīnītiōn-, dēfīnītiō "fixing of a boundary, precise description," from dēfīnīre "to mark the limits of, determine, define " + -tiōn-, -tiō, suffix of verbal action