Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* jŭvĕnor, 1, v. dep. [juvenis], to act with youthful indiscretion, to wanton: aut nimium teneris juvenentur versibus umquam, Hor. A. P. 246; cf.: juvenor, νεωτερίζω, Gloss. Philox.