youthen

/ˈjuːθən/

Etymology

From youth + -en.

youthen means To make younger or more youthful. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

verb

To make younger or more youthful.“It youthened her, melted the stark, hungry grip about her mouth.”
To become younger or more youthful.“He nods, time traveling to a point when there were no central lines, no low blood counts, no immunosuppressive drugs. His face youthens momentarily as he bridges back to a point on a timeline that has none of this devastation on it.”