Later, some people had their names changed by the emperor either because of some outstanding achievement for the nation or because of some crime. People of the former category got surnames identical to that of the emperor's own family name. Those of the latter type were dubbed after inauspicious objects, leading to handles like Huei, meaning "venomous snake."
但是到後人，有的因為有功於國或犯罪，被皇帝強改，前者多賜給予皇帝相同的國姓，後者則被強迫改為不吉利的東西為姓，如虺。