causa promissionisglossary / CAUSA PROMISSIONIS causa promissionis (kaw-z[schwa] pr[schwa]-mish-ee-oh-nis).Eccles. law. The doctrine that an informal undertaking does not oblige if it lacks a good cause. 词条贡献者 双语律师李明,国际知名法学院法律专业,擅长翻译各类与政府监管相关的法律文件。