- veto (n.)
- 1620s, from Latin veto, literally "I forbid," first person singular present indicative of vetare "forbid, prohibit, oppose, hinder," of unknown origin. In ancient Rome, the "technical term for protest interposed by a tribune of the people against any measure of the Senate or of the magistrates" [Lewis].
- veto (v.)
- 1706, from veto (n.). Related: Vetoed; vetoing.