adpromissorglossary / ADPROMISSOR adpromissor (ad-prom-is-[schwa]r), n. [Latin] Roman law. A surety for a debtor under a promise by stipulation. See ADPROMISSION. 词条贡献者 译员圣强,国际仲裁与争端解决专业,专注翻译各种与跨境争议有关的法律文件。