origination clause.(often cap.) 1. The provision in the U.S. Constitution that all bills for increasing taxes and raising revenue must originate in the House of Representatives, not the Senate (U.S. Const. art. I, § 7, cl. 1). • The Senate may, however, amend revenue bills. 2. A provision in a state constitution requiring that revenue bills originate in the lower house of the state legislature. [Cases: Statutes  6. C.J.S. Statutes §§ 12–13.]

[Blacks Law 8th]