robigo

rōbīgo ( rūb- ), ĭnis, f. [robus = ruber; formed like aerugo, ferrugo], 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.