countervote

Verb

 * 1) To vote against.
 * 2) To balance or overcome by voting.
 * 3) * 1697-1698,, Practical Discourses upon Several Subjects
 * he would doubtless have been more a Friend to himself and a Father to his Family than to have countervoted God in his Choice and Election for him.

Noun

 * 1) A vote that goes against another.