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 译员Susanne,知名国际商学院金融专业,专注翻译各种与并购诉讼有关的法律文件。