disqualify
Concise Oxford English Dictionary © 2008 Oxford University Press:
disqualify/dɪsˈkwɒlɪfʌɪ/
▶verb (disqualifies, disqualifying, disqualified) pronounce (someone) ineligible for an office or activity because of an offence or infringement.
■ (of a characteristic) make (someone) unsuitable for an office or activity.
– derivatives
disqualification noun.
disqualification noun.
'disqualify' also found in these Oxford entries:

