disqualify

v. (-ies, -ied) 1 debar from a competition or pronounce ineligible as a winner. 2 make or pronounce ineligible, unsuitable, or unqualified (disqualified from driving).  disqualification n.

v. t. 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.