Definitions

1. verb

to make or become young again; to restore to a state of youthful vigor

“The new spa treatment promised to youthen its customers and leave them feeling refreshed.”

2. verb

to give a youthful appearance to

“The makeup artist was skilled at youthening her clients’ faces without looking unnatural.”

3. verb

to give a sense of youth or vitality to

“The music had a way of youthening the atmosphere and making everyone feel more energetic.”