prōsperus adj. with comp. pro+spes, according to hope, as desired, favorable, fortunate, prosperous: fortuna: res avi tui: hominum generi prosperus fulgor, propitious: si cetera prospera evenissent, L.: prosperos exitūs consequi: religio, i. e. favorable auspices, V.: mox cecinit laudes prosperiore lyrā, O.: prosperius fatum, O.: verba, of good omen, O.: noctilucam, Prosperam frugum, beneficial to fruits, H.