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English word toxin comes from Ancient Greek τόξον, and later Latin toxicum (A poison used on the tips of arrows. Any poison.)
τόξον (Ancient Greek)
τοξικός (Ancient Greek)
τοξικόν (Ancient Greek)
toxicum (Latin)
A poison used on the tips of arrows. Any poison.
toxin (English)
A toxic or poisonous substance produced by the biological processes of biological organisms.