rejuvenator

transitive verb rejuvenated, rejuvenating

1. 1. to make feel or seem young again; bring back to youthful strength, appearance, etc.
   2. to make seem new or fresh again
2. Geol.
   1. to increase the grade and speed of flow of (a stream), usually by uplift of the surrounding land
   2. to give youthful land forms to (a region), as steep slopes

intransitive verb