Olearius, oleárij, m. g. Col. A maker or seller of oyle.
Lewis and Short: Latin dictionary
ŏlĕārĭus, a, um, adj. [id.], of or belonging to oil, oil- (class.): cella vinaria, olearia, Cato, R. R. 3; Cic. Sen. 16, 56: dolia, Plin. 15, 8, 8, 33: mercatores, Dig. 50, 4, 5.—II.Subst.: ŏlĕārĭus, ii, m., an oilgrinder or oil-seller: in velabro olearii, Plaut. Capt. 3, 1, 29: diligentes, Col. 12, 50, 13.