- calmative (adj.)
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[calmative 词源字典] - by 1831, from French calmatif; see calm (adj.) + -ative. A hybrid word; purists prefer sedative. "The Latinic suffix is here defensible on the ground of It. and Sp. calmar, F. calmer ...." [OED].[calmative etymology, calmative origin, 英语词源]