aerūgo, ĭnis, f. [aes, as ferrugo from ferrum].
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.
A Envy , jealousy , ill-will (which seek to consume the possessions of a neighbor, as rust corrodes metals): haec est Aerugo mera, Hor. S. 1, 4, 101: versus tincti viridi aerugine, Mart. 10, 33, 5; 2, 61, 5.—
B Avarice , which cleaves to the mind of man like rust: animos aerugo et cura peculi Cum semel imbuerit, Hor. A. P. 330.