disqualify

disqualify is a Verb

Definition:

[1] To deprive of the qualities or properties necessary for any purpose; to render unfit; to incapacitate; -- with for or from before the purpose, state, or act. My common illness disqualifies me for all conversation; I mean my deafness. Swift. Me are not disqualified by their engagements in trade from being received in high society. Southey.

[2] To deprive of some power, right, or privilege, by positive restriction; to disable; to debar legally; as, a conviction of perjury disqualifies a man to be a witness.