ad pios ususglossary / AD PIOS USUS ad pios usus (ad pI-ohs yoo-s[schwa]s oryoo-z[schwa]s), adv. [Law Latin] For pious (religious or charitable) uses or purposes. • This phrase was used in reference to gifts and bequests. 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。