avariciousness vs greed

avariciousness and greed both are nouns.

Word	Noun	Adjective	Verb	Adverb
avariciousness	Yes	No	No	No
greed	Yes	No	No	No

As nouns, greed is a hypernym of avariciousness; that is, greed is a word with a broader meaning than avariciousness:

avariciousness: extreme greed for material wealth
greed: excessive desire to acquire or possess more (especially more material wealth) than one needs or deserves

avariciousness (noun)	greed (noun)
extreme greed for material wealth	reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)
	excessive desire to acquire or possess more (especially more material wealth) than one needs or deserves