dictator (n.)youdaoicibaDictYouDict[dictator 词源字典]
late 14c., from Latin dictator, agent noun from dictare (see dictate (v.)). Transferred sense of "one who has absolute power or authority" in any sphere is from c. 1600. In Latin use, a dictator was a judge in the Roman republic temporarily invested with absolute power.[dictator etymology, dictator origin, 英语词源]