- fan (v.)
[fan 词源字典]
- late Old English fannian "to winnow (grain)," from the noun (see fan (n.1)). Meaning "to stir up air" is from early 15c. Baseball sense of "strike out (a batter)" is by 1909. Related: Fanned; fanning. To fan out "spread out like a hand-held fan," is from 1590s.[fan etymology, fan origin, 英语词源]