genius vs endowment

genius and endowment both are nouns.

Word	Noun	Adjective	Verb	Adverb
genius	Yes	No	No	No
endowment	Yes	No	No	No

As nouns, endowment is a hypernym of genius; that is, endowment is a word with a broader meaning than genius:

Other hypernyms of genius include gift, natural endowment, talent.

genius (noun)	endowment (noun)
exceptional creative ability	the act of endowing with a permanent source of income
a natural talent	natural abilities or qualities
unusual mental ability	the capital that provides income for an institution
someone who has exceptional intellectual ability and originality
someone who is dazzlingly skilled in any field