tiara (n.)youdaoicibaDictYouDict[tiara 词源字典]
1550s, "headdress of the Persian kings" (also worn by men of rank), from Latin tiara, from Greek tiara, of unknown origin. Earlier in anglicized form tiar (1510s). As a richly jeweled headband in Western wear, 1650s (tiar; 1718 as tiara). Related: Tiaraed.[tiara etymology, tiara origin, 英语词源]