Lewis Short
pŭĕrasco, ĕre
* V. inch. n. [id.].
* To attain the age of boyhood or youth: unus jam puerascens insigni festivitate,Suet. Calig. 7.
* Transf., to grow young again (post-class.), Aus. Idyll. 4, 55; Claud. Mamert. Stat. Anim. 1, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary