So again, what terms describes Universal receiving payment to terminate their licensing agreement?
For everyone involved...
I think the nomenclature issue is a difference between "buy" and "buy out".
If you're paying for something that someone owns owns, then you buy it. If you're paying for something that someone has been licensing/renting, then you "buy out" their lease/contract/license.
Of course people do use either term freely for both or the other. So, everyone is right and everyone is wrong.
Language.