basanites
From LSJ
Οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → Silere non est turpe, sed frustra loqui → nicht Schweigen schändet, sondern Schwätzen auf gut Glück
Latin > English (Lewis & Short)
băsănītes lăpis: = βασανιτης βάσανος>),
I a touchstone, test-stone, a very hard stone, used as a test for the precious metals, for whetstones, and, in medicine, for mortars, Plin. 36, 20, 38, § 147; 36, 22, 43, § 157; Isid. Orig. 16, 4, 36.—Also basanites alone, Plin. 36, 7, 11, § 58.
