To disaccustom; -- with to or from; as, disused to toil.

To cease to use; to discontinue the practice of.

Cessation of use, practice, or exercise; inusitation; desuetude; as, the limbs lose their strength by disuse.

the state of something that has been unused and neglected; "the house was in a terrible state of neglect"

A theory of forgetting that suggests a person forgets those things which are not used.