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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from French glacis (“slippery surface”), derived from Old French glacier (“to glide; freeze”), the former from Latin glaciāre (“to freeze”), from glaciēs (“ice”), of uncertain origin. Cognates * Medieval Latin glatia (“incline in front of a fortification”)
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Classic usage
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