WaldensianyoudaoicibaDictYouDict[Waldensian 词源字典]
c. 1600, from Waldenses (plural), mid-15c., from Medieval Latin, apparently from Waldensis, a variant form of the surname of Peter Waldo, the preacher who originated the sect c.1170 in southern France. Excommunicated 1184, they eventually were swept into the Protestant revolt (16c.).[Waldensian etymology, Waldensian origin, 英语词源]