early 13c., from Old French empereor "emperor, leader, ruler" (11c.; accusative; nominative emperere; Modern French empereur), from Latin imperiatorem (nominative imperiator) "commander, emperor," from past participle stem of imperare "to command" (see empire).
Originally a title conferred by vote of the Roman army on a successful general, later by the Senate on Julius and Augustus Caesar and adopted by their successors except Tiberius and Claudius. In the Middle Ages, applied to rulers of China, Japan, etc.; non-historical European application in English had been only to the Holy Roman Emperors (who in German documents are called kaiser), from late 13c., until in 1804 Napoleon took the title "Emperor of the French."
例文
1. The Emperor must realize that he has us at his mercy.
皇帝は私たちが彼に任せていることを意識しなければならない。
2.He had implicit faith in the noble intentions of the Emperor .
彼は皇帝陛下の高尚な動機を深く信じている。
3.The President paid a courtesy call on Emperor Akihito.
大統領は明仁天皇を儀礼的に訪問した。
4. Emperor Akihito of Japan has been enthroned in Tokyo.
日本の明仁天皇が東京で即位した。
5.Official handouts describe the Emperor as "particularly noted as a scholar ".