IPA: /ˈjuːθən/
KK: /ˈjuːθən/
To make someone or something younger or to appear younger.
The new skincare product claims to youthen the skin.
Past: youthened
Past Participle: youthened
Youthen is formed from "youth" (from Old English "geogð", meaning the period of being young) and "-en" (a suffix used to form verbs indicating to make or become). The word "youthen" means to make or become youthful or to rejuvenate.
Think of the word 'youth' representing the time of being young, and the '-en' suffix meaning to make or become. This helps you remember that 'youthen' means to make something youthful.