potentiality vs capability

potentiality and capability both are nouns.

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

As nouns, potentiality and capability are synonyms defined as:

Other synonyms of potentiality include capableness.

potentiality (noun)	capability (noun)
an aptitude that may be developed	the quality of being capable -- physically or intellectually or legally
the inherent capacity for coming into being	an aptitude that may be developed
	the susceptibility of something to a particular treatment