a. [ From Demise. ] (Law) Capable of being leased; as, a demisable estate. [ 1913 Webster ]

v. t. [ imp. & p. p. Disabled p. pr. & vb. n. Disabling ] 1. To render unable or incapable; to destroy the force, vigor, or power of action of; to deprive of competent physical or intellectual power; to incapacitate; to disqualify; to make incompetent or unfit for service; to impair. [ 1913 Webster ]

A Christian's life is a perpetual exercise, a wrestling and warfare, for which sensual pleasure disables him. Jer. Taylor. [ 1913 Webster ]

And had performed it, if my known offense
Had not disabled me. Milton. [ 1913 Webster ]

I have disabled mine estate. Shak. [ 1913 Webster ]

2. (Law) To deprive of legal right or qualification; to render legally incapable. [ 1913 Webster ]

An attainder of the ancestor corrupts the blood, and disables his children to inherit. Blackstone. [ 1913 Webster ]

3. To deprive of that which gives value or estimation; to declare lacking in competency; to disparage; to undervalue. [ Obs. ] “He disabled my judgment.” Shak.

Syn. -- To weaken; unfit; disqualify; incapacitate. [ 1913 Webster ]

a. Lacking ability; unable. [ Obs. ] “Our disable and unactive force.” Daniel. [ 1913 Webster ]

adj. 1. injured so as to be unable to function; as, disabled veterans.
Syn. -- hors de combat, out of action. [ WordNet 1.5 +PJC ]

2. unable to function at normal capacity.
Syn. -- handicapped, incapacitated. [ WordNet 1.5 +PJC ]

n. Deprivation of ability; incapacity. Bacon. [ 1913 Webster ]