suretyship by operation of lawglossary / suretyship by operation of law A suretyship that the law creates when a third party promises a debtor to assume and pay the debt that the debtor owes to a creditor. [Cases: Principal and Surety 14. C.J.S. Principal and Surety § 35.] 词条贡献者 双语律师Jason,国内知名法学院民商法专业,擅长翻译有关体育博彩领域的法律文件。