ableness

noun3

1. •
   The degree to which one is abled or disabled.

   • In academic discourse, hybridity is out; intersectionality is in. People are imagined as the sum of their race, gender, sexuality, ableness, and other identities. — 2018
2. •
   (rare) Something one is able to do.
3. •
   (no longer used) Ability of body or mind.

   • […]not that we are sufficient of oure selues to thynke eny thinge, as of oure selues, but oure ablenesse commeth of God,[…] — 1535