出典:Wiktionary
出典:『Wiktionary』 (2026/04/19 22:33 UTC 版)
From 中期英語 dafte, defte (“gentle; having good manners; humble, modest; awkward; dull; boorish”), from 古期英語 dæfte (“accommodating; gentle, meek, mild”), from Proto-West Germanic *daftī (“fitting, suitable”). Related to 古期英語 dafnian, dafenian (“to be fitting, appropriate, or becoming”), Russian до́брый (dóbryj, “good”). Doublet of deft.
Compare silly which originally meant “blessed; good, innocent; pitiful; weak”, but now means “laughable or amusing through foolishness or a foolish appearance; mentally simple, foolish”.
Unrelated to, though perhaps influenced by, daff (“fool (n.); to be foolish (v.)”) (past form daffed).
daft (comparative dafter, superlative daftest)
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