Lewis Short
(adjective) : ĭn-ausus, a, um
* Not ventured, unattempted (poet. and in post-Aug. prose): ne quid inausum Aut intractatum scelerisve dolive fuisset,Verg. A. 8, 205: nefas,Val. Fl. 1, 807: quid enim per hosce dies inausum intemeratumve vobis?Tac. A. 1, 42: sciat animus nihil inausum esse fortunae,Sen. Ep. 91 med.—Plur. as subst.: ĭn-ausa, ōrum, n., unattempted things, deeds beyond daring: quae inausa audeat,Sen. Thyest. 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary