- foolish (adj.)
[foolish 词源字典]
- early 14c., from fool (n.1) + -ish. Older adjectives in Middle English were fool (c. 1200); folly (c. 1300). Old English words for this were dysig, stunt, dol. Related: Foolishly; foolishness. [foolish etymology, foolish origin, 英语词源]