proprietary dutyglossary / proprietary duty A duty owed by a governmental entity while engaged in a proprietary, rather than governmental, activity. [Cases: Municipal Corporations 725. C.J.S. Municipal Corporations § 664.] 词条贡献者 法律翻译Jessie,在一家亚洲一流律师事务所的北京办公室担任全职法律翻译,擅长翻译有关港口、铁路、公路与海运的法律文件。