proviso (n.)youdaoicibaDictYouDict[proviso 词源字典]
mid-15c., from Medieval Latin proviso (quod) "provided (that)," phrase at the beginning of clauses in legal documents (mid-14c.), from Latin proviso "it being provided," ablative neuter of provisus, past participle of providere (see provide). Related: Provisory.[proviso etymology, proviso origin, 英语词源]