Lewis Short
(verb) : in-cerno, ĕre
* To sift upon a thing, to cover or bestrew with sifting; to sift, scatter with a sieve: terram cribro,Cato, R. R. 48, 2; Col. 5, 6, 6: super fricaturam incernatur marmor,Vitr. 7, 1: incretum ( = per incerniculum sive cribrum inspersum),sifted in,Hor. S. 2, 4, 75 Orell. (but in Plin. 37, 6, 23, § 87, the correct read. is redimitum; v. Sillig. ad h. l.).
Charlton T. Lewis, Charles Short, A Latin Dictionary