Succerno, succernis, succréui, succrêtum, pen. pro. succérnere. Plin. To range meale with a sieeue: to seperate or take from other.Farinario cribro succernunt. Plin. They range it, or sift it with, &c.Partem de nucleis succerniro. Cato. Separate, &c.
Lewis and Short: Latin dictionary
suc-cerno (subc-), crēvi, crētum, 3, v. a., to sift through, to sift.I.Lit.: vinaceos cottidie recentes succernito, Cato, R. R. 25; 10, 5; 18, 7; 151, 3; Plin. 18, 11, 29, 115; Vitr. 2, 5.—Comically: iste gradus succretu'st cribro pollinario, Plaut. Poen. 3, 1, 10.— II.Transf., to shake up, agitate, Sev. Aetna, 492.