aubain (n.)youdaoicibaDictYouDict[aubain 词源字典]
1727, from French aubaine (12c.), which is of unknown origin, perhaps from Medieval Latin Albanus, but the sense is obscure. Klein suggests Frankish *alibanus, literally "belonging to another ban." A right of French kings, whereby they claimed the property of every non-naturalized stranger who died in their realm. Abolished 1819.[aubain etymology, aubain origin, 英语词源]