Promethean (adj.)youdaoicibaDictYouDict[Promethean 词源字典]
1580s, from Prometheus + -an. Before the introduction of modern matches (see lucifer), promethean was the name given (early 19c.) to small glass tubes full of sulphuric acid, surrounded by an inflammable mixture, which ignited when pressed and gave off light.[Promethean etymology, Promethean origin, 英语词源]