inherited wealth vs wealthiness

inherited wealth and wealthiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
inherited wealth	Yes	No	No	No
wealthiness	Yes	No	No	No

As nouns, wealthiness is a hypernym of inherited wealth; that is, wealthiness is a word with a broader meaning than inherited wealth:

inherited wealth: wealth that is inherited rather than earned
wealthiness: the state of being rich and affluent; having a plentiful supply of material goods and money

Other hypernyms of inherited wealth include wealth.

inherited wealth (noun)	wealthiness (noun)
wealth that is inherited rather than earned	the state of being rich and affluent; having a plentiful supply of material goods and money