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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English unthank, from Old English unþanc (“displeasure, anger, ill-will”), from Proto-Germanic *unþankaz, equivalent to un- + thank. Cognate with West Frisian ontank, Dutch ondank, German Undank, Danish utak.
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Classic usage
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