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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 deven, deaven (“to make deaf”), from Old English dēafian (“to wax or become deaf”) and Old Norse deyfa (“to make deaf, make blunt, numb, soothe, allay”). Cognate with dialectal Norwegian døyva (“to deafen, make dull”).
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Classic usage
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