cede: (1) to surrender possession of, especially by treaty, (2) to transfer control of or sovereignty over specific property or territory, especially by treaty, (3) to surrender or give up something such as land, rights, or power, (4) [noun] cession

Note: According to the dictionary definition of cede as given above, there is no strict requirement that a "receiving country" be designated in order to complete the act of ceding, or making a cession.

When territory is ceded without the specification of a "receiving country" it may simply be called a limbo cession.