Definition of amethyst noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈæməθɪst//
; NAmE NAmE//ˈæməθɪst//
[countable, uncountable] Jewellery
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a purple semi-precious stone, used in making jewellery an amethyst ring See related entries: Jewellery Word OriginMiddle English: via Old French from Latin amethystus, from Greek amethustos ‘not drunken’ (because the stone was believed to prevent intoxication).
See the Oxford Advanced American Dictionary entry: amethyst