tephromancy (n.)youdaoicibaDictYouDict[tephromancy 词源字典]
1650s, "divination by means of ashes," from Modern Latin tephromantia, from comb. form of Greek tephra "ashes" + manteia "divination," from mantis "prophet" (see mania).[tephromancy etymology, tephromancy origin, 英语词源]