pursuit vs pursue

pursuit is a noun but pursue is not a noun.

Word	Noun	Adjective	Verb	Adverb
pursuit	Yes	No	No	No
pursue	No	No	Yes	No

pursuit (noun)	pursue (noun)
the act of pursuing in an effort to overtake or capture
a diversion that occupies one's time and thoughts (usually pleasantly)
an auxiliary activity
a search for an alternative that meets cognitive criteria

pursuit (verb)	pursue (verb)
	go in search of or hunt for
	follow in or as if in pursuit
	carry out or participate in an activity; be involved in
	carry further or advance