aerūgo — Lewis & Short
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.