The Collaborative International Dictionary
Juvenescent
Juvenescent \Ju`ve*nes"cent\, a. [L. juvenescens, p. pr. of juvenescere to grow young again, from juvenis young.] Growing or becoming young.
Douglas Harper's Etymology Dictionary
juvenescent
1821, from Latin iuvenescentem (nominative iuvenescens), present participle of iuvenescere "to grow into youth," from iuvenis "young" (see young).
Wiktionary
juvenescent
a. Becoming juvenile or young.
Usage examples of "juvenescent".
He has a perfectly good father who would never encourage him in this type of juvenescent irresponsibility.
Ernst thought, later in his life than either of his juvenescent calamities.