usury lawglossary / USURY LAW usury law. A law that prohibits moneylenders from charging illegally high interest rates. [Cases: Usury1. C.J.S. Interest and Usury; Consumer Credit§§ 2, 4, 100.] 词条贡献者 法律翻译玉晶,毕业于英国一流的高级翻译学院,专注翻译各类与通用数据保护条例有关的法律文件。