gumption vs sagacity

gumption and sagacity both are nouns.

Word	Noun	Adjective	Verb	Adverb
gumption	Yes	No	No	No
sagacity	Yes	No	No	No

As nouns, sagacity is a hypernym of gumption; that is, sagacity is a word with a broader meaning than gumption:

gumption: sound practical judgment
sagacity: the mental ability to understand and discriminate between relations

Other hypernyms of gumption include discernment, judgement, judgment, sagaciousness.

gumption (noun)	sagacity (noun)
fortitude and determination	the trait of forming opinions by distinguishing and evaluating
sound practical judgment	the mental ability to understand and discriminate between relations