Disqualify
DISQUALIFY, verb transitive [dis and qualify.]
1. To make unfit; to deprive of natural power, or the qualities or properties necessary for any purpose; with for. Indisposition disqualifies the body for labor, and the mind for study. Piety disqualifies a person for no lawful employment.
2. To deprive of legal capacity, power or right; to disable. A conviction of perjury disqualifies a man for a witness. A direct interest in a suit disqualifies a person to be a juror in the cause.