noun greek

obrussa

gen. obrussae · gender feminine · decl. 1st

(pure Gr. collat. form = χρυσίον ὄβρυζον, , Vulg. 2 Par. 3, 5; Isid. 16, 18, 2), , = ὄβρυζον

the testing; assaying of gold by fire in a cupel

the testing or assaying of gold by fire in a cupel (class.).

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Lit.: auri experimentum ignis est: id ipsum obrussam vocant, Plin. 33, 3, 19, § 59: aurum ad obrussam, refined, pure gold, Suet. Ner. 44.—

a test, touchstone, proof figuratively •

Trop., a test, touchstone, proof: adhibenda tamquam obrussa ratio, Cic. Brut. 74, 258: sic verus ille animus probatur: haec ejus obrussa est, this is its touchstone, its test, Sen. Ep. 13, 1: si omnia argumenta ad obrussam coeperimus exigere, to put to the proof, test accurately, id. Q. N. 4, 5, 1.

Perseus ID: n31793 Key: obrussa