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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 def, deef, from Old English dēaf, from Proto-West Germanic *daub, from Proto-Germanic *daubaz, from Proto-Indo-European *dʰewbʰ- (“to whisk, smoke, darken, obscure”). Cognate with Ancient Greek τυφλός (tuphlós, “blind”). See also dumb. Doublet of daff, dof, and dowf. Cognate with Dutch doof, German taub, Danish and Norwegian Bokmål døv, Norwegian Nynorsk dauv, Swedish döv, Faroese deyvur, Icelandic daufur.
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Classic usage
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