particular vs particularity

particular and particularity both are nouns.

Word	Noun	Adjective	Verb	Adverb
particular	Yes	Yes	No	No
particularity	Yes	No	No	No

particular (noun)	particularity (noun)
a fact about some part (as opposed to general)	the quality of being particular and pertaining to a specific case or instance
(logic) a proposition that asserts something about some (but not all) members of a class
a small part that can be considered separately from the whole

particular (adjective)	particularity (adjective)
providing specific details or circumstances
exacting especially about details
first and most important
unique or specific to a person or thing or category
surpassing what is common or usual or expected
separate and distinct from others of the same group or category