disqualify

verb (used with object), dis·qual·i·fied, dis·qual·i·fy·ing.

1. to deprive of qualification or fitness; render unfit; incapacitate.
2. to deprive of legal, official, or other rights or privileges; declare ineligible or unqualified.
3. Sports. to deprive of the right to participate in or win a contest because of a violation of the rules.

verb -fies, -fying or -fied (tr)

1. to make unfit or unqualified
2. to make ineligible, as for entry to an examination
3. to debar (a player or team) from a sporting contest
4. to divest or deprive of rights, powers, or privilegesdisqualified from driving