rejuvenation vs rejuvenate

rejuvenation is a noun but rejuvenate is not a noun.

Word	Noun	Adjective	Verb	Adverb
rejuvenation	Yes	No	No	No
rejuvenate	No	No	Yes	No

rejuvenation (noun)	rejuvenate (noun)
the act of restoring to a more youthful condition
the phenomenon of vitality and freshness being restored

rejuvenation (verb)	rejuvenate (verb)
	become young again
	make younger or more youthful
	develop youthful topographical features
	get or give new life or energy; return to life, regain energy, recuperate
	cause (a stream or river) to erode, as by an uplift of the land