Meaning

• To render unable; to take away an ability of, as by crippling.

• (chiefly of a person) To impair the physical or mental abilities of; to cause a serious, permanent injury.

  "Falling off the horse disabled him."

• To deactivate, to make inoperational (especially of a function of an electronic or mechanical device).

  "The pilot had to disable the autopilot of his airplane."

Meaning

• Lacking ability; unable.