pursuit vs pursuance

pursuit and pursuance both are nouns.

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

As nouns, pursuit and pursuance are synonyms defined as:

pursuit and pursuance: a search for an alternative that meets cognitive criteria

Other synonyms of pursuit include quest.

pursuit (noun)	pursuance (noun)
the act of pursuing in an effort to overtake or capture	the continuance of something begun with a view to its completion
a diversion that occupies one's time and thoughts (usually pleasantly)	a search for an alternative that meets cognitive criteria
an auxiliary activity
a search for an alternative that meets cognitive criteria