ces·sion
noun/ˈseʃn/
/ˈseʃn/
[uncountable, countable] (formal)- the act of giving up land or rights, especially to another country after a war
（尤指战争结束后领土的）割让；（权利的）放弃 Word Originlate Middle English; from Latin cessio(n-), from cedere ‘cede’.