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Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
From Middle English clensen, from Old English clǣnsian, from Proto-West Germanic *klainisōn, from Proto-West Germanic *klainī (“clean”). Cognate with West Frisian klinzgje (“to clean, cleanse”), archaic Dutch kleinzen (“to clean, purify”), Middle Low German klênsen, kleinsen, clensen (“to purify”).
clean
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Classic usage
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