obrussa: Difference between revisions

|lshtext=<b>obrussa</b>: ae ([[pure]] Gr. collat. form = [[χρυσίον]] [[ὄβρυζον]]>, obrȳzum [[aurum]], Vulg. 2 Par. 3, 5; Isid. 16, 18, 2), f., = [[ὄβρυζον]]>,<br /><b>I</b> the testing or assaying of [[gold]] by [[fire]] in a cupel ([[class]].).<br /><b>I</b> Lit.: auri [[experimentum]] [[ignis]] est: id ipsum obrussam vocant, Plin. 33, 3, 19, § 59: [[aurum]] ad obrussam, [[refined]], [[pure]] [[gold]], Suet. Ner. 44.—<br /><b>II</b> 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.