commonality vs commonalty

commonality and commonalty both are nouns.

Word	Noun	Adjective	Verb	Adverb
commonality	Yes	No	No	No
commonalty	Yes	No	No	No

As nouns, commonality and commonalty are synonyms defined as:

commonality and commonalty: a class composed of persons lacking clerical or noble rank

Other synonyms of commonality include commons.

commonality (noun)	commonalty (noun)
sharing of common attributes	a class composed of persons lacking clerical or noble rank
a class composed of persons lacking clerical or noble rank