capableness vs capability

capableness and capability both are nouns.

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

As nouns, capableness and capability are synonyms defined as:

capableness and capability: the quality of being capable -- physically or intellectually or legally

As nouns, capableness and capability are synonyms defined as:

Other synonyms of capableness include potentiality.

capableness (noun)	capability (noun)
the quality of being capable -- physically or intellectually or legally	the quality of being capable -- physically or intellectually or legally
an aptitude that may be developed	an aptitude that may be developed
	the susceptibility of something to a particular treatment