Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
verrunco, āre, v. n., to turn, turn about; hence, in relig. lang., to turn out well, have a fortunate issue: bene, Att. and Pac. ap. Non. 185, 24; Att. ap. Cic. Div. 1, 22, 45; Liv. 29, 27, 2; cf. Fest. p. 373.