chalcedony (n.)youdaoicibaDictYouDict[chalcedony 词源字典]
c. 1300, from Latin calcedonius, in Vulgate translating Greek khalkedon in Rev. xxi:19, found nowhere else. Connection with Chalcedon in Asia Minor "is very doubtful" [OED]. The city name is from Phoenician and means "new town."[chalcedony etymology, chalcedony origin, 英语词源]