Growing out abnormally or excessively; characterized by excrescence; superfluous or unnecessary.
From Latin excrescens (growing out), present participle of excrescere; the -ent suffix indicates a continuing state or tendency.
In grammar, linguists call certain sounds 'excrescent'—like the 'p' that sneaks into 'something' in casual speech—because they're sounds that grow out where they shouldn't, similar to how a wart grows on skin.
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