ableness

noun

1.
the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment
avel formay lightliness meeth orthank skillness wald workingness ability
2.
the quality of being capable — physically or intellectually or legally
capability capableness
3.
the condition of being unable to perform as a consequence of physical or mental unfitness
NHG Behinderun disability disablement handicap impairment