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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 knyllen, from Old English cnyllan (“to strike; knock; clap”), from Proto-West Germanic *knuʀlijan, from Proto-Germanic *knuzlijaną (“to beat; push; mash”), from Proto-Indo-European *gen- (“to squeeze, pinch, kink, ball up”).
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Classic usage
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