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 资深译员姚坚,毕业于一所培养高级翻译以及跨文化事务专家的精英大学,专注翻译各种与私募资本有关的法律文件。