ventilabrum
From LSJ
ventĭlābrum: i, n. ventilo,
I an implement for winnowing grain, a winnowing-fork, Col. 2, 10, 14; Prud. Apoth. praef. 2, 53; Vulg. Matt. 3, 12; Ambros. in Psa. 118, Serm. 3, n. 15.
ventĭlābrum, ī, n. (ventilo), van : Col. Rust. 2, 10, 14.