puellasco

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

pŭellasco, ĕre, v. inch. n. [puella],

to become a girl , i.e. to grow girlish or effeminate : etiam veteres puellascunt et multi pueri puellascunt, Varr. ap. Non. 154, 8 sq.