capable vs potentiality

capable is not a noun while potentiality is a noun.

Word	Noun	Adjective	Verb	Adverb
capable	No	Yes	No	No
potentiality	Yes	No	No	No

capable (noun)	potentiality (noun)
	an aptitude that may be developed
	the inherent capacity for coming into being

capable (adjective)	potentiality (adjective)
(usually followed by `of') having capacity or ability
(followed by `of') having the temperament or inclination for
having the requisite qualities for
have the skills and qualifications to do things well
possibly accepting or permitting