having the quality or function of purifying or cleansing; serving to remove impurities.
From 'depurate' plus '-ive,' an adjective-forming suffix. The '-ive' suffix turns verbs and nouns into adjectives describing qualities or functions.
Medieval herbalists classified plants as 'depurative'—meaning they could cleanse the body—and this term is still used in alternative medicine and herbal remedies to describe plants believed to have purifying powers!
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