Lewis Short
sĭmĭla | sĭmĭlāgo (noun F) : root si, to sift; cf. Gr. ἱμαλιά; Germ. Semmel
* The finest wheat flour, Cels. 2, 18 med.; 2, 30; Mart. 13, 10in lemm.;Hier. Ep. 52, 6; 54, 11.—Called also, , Plin. 18, 10, 20, § 89; Ambros. in Luc. 8, § 49; Vulg. Num. 7, 13 et saep.
Charlton T. Lewis, Charles Short, A Latin Dictionary