bountifulness vs bounty

bountifulness and bounty both are nouns.

Word	Noun	Adjective	Verb	Adverb
bountifulness	Yes	No	No	No
bounty	Yes	No	No	No

As nouns, bountifulness and bounty are synonyms defined as:

Other synonyms of bountifulness include amplitude.

bountifulness (noun)	bounty (noun)
the property of copious abundance	(literary) generosity evidenced by a willingness to give freely
	the property of copious abundance
	payment or reward (especially from a government) for acts such as catching criminals or killing predatory animals or enlisting in the military