I.rust of metals.
I. Lit.: “hoc quidem pol e robigine, non e ferro factum est,” Plaut. Rud. 5, 2, 13: “exesa inveniet scabra robigine pila,” Verg. G. 1, 495: “salsā laedit robigine ferrum,” id. ib. 2, 220; Plin. 7, 15, 13, § 64: “non rubigo ulla, non aerugo,” id. 33, 3, 19, § 62.—
B. Transf.
1. Rust, blight, mildew, smut, mouldiness, on grain, Varr. L. L. 6, § 16 Müll.; id. R. R. 1, 1, 6; Col. 2, 11, 5; id. Arb. 13; id. poët. 10, 342; Plin. 18, 28, 68, § 275; 18, 28, 69, § 279; Hor. C. 3, 23, 7 al.; cf. Robigus and Robigalia.—
2. The deposit, mould, etc., that collects on millstones, Plin. 36, 18, 30, § 136; on the teeth, Ov. M. 2, 776; 8, 802; id. A. A. 1, 515; an ulcer in a wound, Calp. Ecl. 5, 76; a sore, ulcer, produced by lewdness, Varr. ap. Serv. Verg. G. 1, 151.—
II. Trop., rust (poet. and in post-Aug. prose): “ingenium longa rubigine laesum Torpet,” Ov. Tr. 5, 12, 21: “animorum,” Sen. Ep. 95, 36; 7, 7: “horridae vetustatis,” Val. Max. 2, 9, 5.— As personified, v. Robigus fin.
