a. - Lacking ability; unable.
v. t. - 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.
v. t. - To deprive of legal right or qualification; to render legally incapable.
v. t. - To deprive of that which gives value or estimation; to declare lacking in competency; to disparage; to undervalue.