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Classic usage
Pronunciation: /ˈpɛ.tɹəˌfaɪ/
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle French pétrifier, from Medieval Latin petrificāre, from Latin petra (“rock”), from Ancient Greek πέτρα (pétra, “rock”) + -ficāre, from facere (“do, make”), equivalent to petro- + -ify.
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tap / space
Classic usage
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