Origin: 1200-1300 Old French amatiste, from Latin amethystus, from Greek, preventer of drunkenness, amethyst
1 [countable, uncountable] a valuable purple stone used in jewelry2[uncountable] a light purple color [Origin: 1200–1300 Old French amatiste, from Latin amethystus, from Greek, preventer of drunkenness, amethyst]—amethyst adjective