haecceity vs quiddity

haecceity and quiddity both are nouns.

Word	Noun	Adjective	Verb	Adverb
haecceity	Yes	No	No	No
quiddity	Yes	No	No	No

As nouns, haecceity and quiddity are synonyms defined as:

haecceity and quiddity: the essence that makes something the kind of thing it is and makes it different from any other

haecceity (noun)	quiddity (noun)
the essence that makes something the kind of thing it is and makes it different from any other	the essence that makes something the kind of thing it is and makes it different from any other
	an evasion of the point of an argument by raising irrelevant distinctions or objections