federalize

(v) unite on a federal basis or band together as a league
- The country was federated after the civil war
federate, federalise,
(v) put under the control and authority of a federal government federalise,
(v) enter into a league for a common purpose
- The republics federated to become the Soviet Union
federate, federalise,

federate federalise

federalise federalism federalist