onerous causeglossary / ONEROUS CAUSE onerous cause. Civil law. An advantage obtained in exchange for a contractual obligation. See La. Civ. Code arts. 1909, 1967. 词条贡献者 译者张文,国际知名商学院金融专业,擅长翻译各种与结构性融资及衍生品诉讼相关的法律文件。