ces ‧ sion /ˈseʃ ə n/ BrE AmE noun [uncountable and countable]
[ Date: 1300-1400 ; Language: French ; Origin: Latin cessio , from cedere ; ⇨ ↑ cede ]
the act of giving up land, property, or rights, especially to another country after a war, or something that is given up in this way ⇨ cede :
Spanish cession of the territory in 1818