me·​di·​a·​tize | \ ˈmēdēəˌtīz\

Definition of mediatize

transitive verb

1 : to bring (a prince or state) down to the rank of mediate vassal from that of immediate vassal of the Holy Roman Empire : annex (a state) to another a mediatized prince— Cyril Connolly
2 : to put into a middle or intermediate position : make instrumental or subordinate

intransitive verb

1 : to act as mediator
2 : to become a mediate vassal of the Holy Roman Empire

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History and Etymology for mediatize

German mediatisieren, from mediat mediate (from Late Latin mediatus, past participle of mediare to be in the middle) + -isieren -ize

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