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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English clatren (“to make a rattling sound”), from Old English *clatrian (attested as the Late Old English gerund clatrung), of onomatopoeic origin. Compare Dutch klateren, kletteren. The noun, derived from the verb, is first attested in the 14ᵗʰ century.
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Classic usage
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