legality
/liːˈgælətɪ/noun
(pl. -ies)［mass noun］
1- the quality or state of being in accordance with the law合法性, 法律性：
documentation testifying to the legality of the arms sale.
证明军售合法的文件。
1.1
legalities
obligations imposed by law法律义务。
词源
late Middle English: from French légalité or medieval Latin legalitas 'relating to the law'， from Latin legalis （see LEGAL）.