The story
- Proto-West Germanic · inherited from*daftī“fitting, suitable”
- Old English · inherited fromdæfte“accommodating; gentle, meek, mild”
- Middle English · inherited fromdafte
- English todaydaft
From Middle English dafte, defte (“gentle; having good manners; humble, modest; awkward; dull; boorish”), from Old English dæfte (“accommodating; gentle, meek, mild”), from Proto-West Germanic *daftī (“fitting, suitable”). Related to Old English 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).
Words from the same roots
Etymology from Wiktionary, CC BY-SA 4.0.