To annex (a lesser state) to a greater state as a means of permitting the ruler of the lesser state to retain title and partial authority.
To annex (a smaller state) to a larger one, leaving the ruler his or her title and some authority.
Origin of mediatize
- Probably French médiatiser from médiat dependent from Old French back-formation from immediat independent from Late Latin immediātus immediate
From American Heritage Dictionary of the English Language, 5th Edition