Mixture

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late Middle English: from French mixture or Latin mixtura (see mixed).

wiktionary

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From Middle English, borrowed from Old French misture, from Latin mixtūra(“a mixing”), from mixtus, perfect passive participle of misceō(“mix”); compare mix.

etymonline

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mixture (n.)

early 15c., "that which results from mixing;" mid-15c. "act of mixing, state of being mixed;" from Old French misture and directly from Latin mixtura "a mixing," from mixtus (from PIE root *meik- "to mix"). Earlier in both senses was mixtion (late 14c.), from Medieval Latin mixtionem.