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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English adamant, adamaunt, from Latin adamantem, accusative singular form of adamās (“hard as steel”), from Ancient Greek ἀδάμας (adámas, “invincible”), from ἀ- (a-, “not”) + δαμάζω (damázō, “to tame”) or of Semitic origin. Doublet of diamond.
diamond
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Classic usage
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