Winnow

win′ō, v.i. to separate the chaff from the grain by wind: to fan: to examine: to sift: to blow upon: ( Milt. ) to set in motion: ( rare ) to flap, flutter.— v.i. to separate chaff from grain.— n. a fan for winnowing.— ns. Winn′ower ; Winn′owing ; Winn′owing-fan , -machine′ , a fan, machine, for winnowing. [A.S. windwian , to winnow.]