rejuvenate

Return to life; get or give new life or energy.

Become young again.

“The old man rejuvenated when he became a grandfather”

Cause (a stream or river) to erode, as by an uplift of the land.

Develop youthful topographical features.

“the land rejuvenated”

Make younger or more youthful.

“The contact with his grandchildren rejuvenated him”