2 occurrences in 2 dictionaries

Reference: Winnowing

Morish

This was accomplished in the open air, by throwing up the grain with a shovel, or a fan (??????, really a kind of shallow basket); the wind carried away the chaff. Boaz winnowed his barley in the evening, when there would be more wind. Ru 3:2; Isa 30:24. John the Baptist said of the Lord that His fan was in His hand, and He would thoroughly purge His floor; gather His wheat into the garner; and burn up the chaff with unquenchable fire. Mt 3:12; Lu 3:17. It is now a day of grace, a sowing time, but the harvest will come, and the winnowing will surely follow.

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Smith

Winnowing,

[AGRICULTURE]

See Agriculture