parishioner (n.)youdaoicibaDictYouDict[parishioner 词源字典]
mid-15c., with -er (1), from earlier parishen "parishioner" (c. 1200), from Old French paroissien, parochien, from paroisse (see parish). Doublet form parochian was obsolete by 1700.[parishioner etymology, parishioner origin, 英语词源]