avidness vs avidity

avidness and avidity both are nouns.

Word	Noun	Adjective	Verb	Adverb
avidness	Yes	No	No	No
avidity	Yes	No	No	No

As nouns, avidness and avidity are synonyms defined as:

avidness and avidity: a positive feeling of wanting to push ahead with something

Other synonyms of avidness include eagerness, keenness.

avidness (noun)	avidity (noun)
a positive feeling of wanting to push ahead with something	a positive feeling of wanting to push ahead with something