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. "A Christian's life is a perpetual exercise, a wrestling and warfare, for which sensual pleasure disables him." "And had performed it, if my known offense Had not disabled me." "I have disabled mine estate."