pennilessness vs impoverishment

pennilessness and impoverishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
pennilessness	Yes	No	No	No
impoverishment	Yes	No	No	No

As nouns, impoverishment is a hypernym of pennilessness; that is, impoverishment is a word with a broader meaning than pennilessness:

pennilessness: a state of lacking money
impoverishment: the state of having little or no money and few or no material possessions

Other hypernyms of pennilessness include poorness, poverty.

pennilessness (noun)	impoverishment (noun)
a state of lacking money	the act of making someone poor
	the state of having little or no money and few or no material possessions