payability
/ˌpeɪəˈbɪlɪti/noun
1Ability or willingness to pay; (also of a debt, sum of money, etc.) the quality of having to be paid.
2 Mining. Of a mine or mining area: the capacity to be worked profitably.
3More generally: the quality of being profitable or remunerative.
Origin
Early 19th century; earliest use found in Blackwood's Magazine. From payable + -ity: see -bility.