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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Recorded since 1555, from Old French pyrite (12th century), from Latin pȳritēs, from Ancient Greek πυρίτης λίθος (purítēs líthos, “stone of fire, flint”) (so called because it glitters), notably the first part: adjective πυρίτης (purítēs, “of or in fire”), from πῦρ (pûr, “fire”). Analyzable as pyr- + -ite
iron pyrite, fool's gold
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Classic usage
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