I. Rust of copper: aes Corinthium in aeruginem incidit, * Cic. Tusc. 4, 14; Plin. 15, 8, 8, § 34; 34, 17, 48, § 160.—
B. Transf.
1. The verdigris prepared from the same: “Aeruginis quoque magnus usus est,” Plin. 34, 11, 26, § 110.—
2. In gen., rust of gold and silver: “aerugo eorum (auri et argenti) in testimonium vobis erit,” Vulg. Jac. 5, 3.—
3. Poet. (as pars pro toto, and sarcastic.), money, Juv. 13, 60.—
II. Trop.