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Classic usage
Reading level: hard
Estimated CEFR level: B1 — Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English poysoun, poyson, pusoun, from Old French poison, poisun, from Latin pōtiōnem (“drink, a draught, a poisonous draught, a potion”), from pōtō (“to drink”). See also potion and potable (from the same root). Mostly displaced native Old English ātor. See more at atter.
toxicant, poisonous substance
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Classic usage
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