youthen
youthen
(ˈjuːθən)vb (tr)
to render more youthful in appearance
vb (intr)
to become youthful in appearance and quality
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014