Mormon (n.)youdaoicibaDictYouDict[Mormon 词源字典]
1830, coined by religion founder Joseph Smith (1805-1844) in Seneca County, N.Y., from Mormon, supposed prophet and author of "The Book of Mormon," explained by Smith as meaning more mon, from English more + Egyptian mon "good." As an adjective by 1842. Related: Mormonism.[Mormon etymology, Mormon origin, 英语词源]