Puritanism (n.)youdaoicibaDictYouDict[Puritanism 词源字典]
1570s, from Puritan + -ism. Originally in reference to specific doctrines; from 1590s of excessive moral strictness generally. In this sense, famously defined by H.L. Mencken (1920) as "the haunting fear that someone, somewhere may be happy."[Puritanism etymology, Puritanism origin, 英语词源]