diadem
/ˈdaɪədem/noun
1- a jewelled crown or headband worn as a symbol of sovereignty王冠, 冕; （象征王权的）头带。
1.1
the diadem
archaic the authority or dignity symbolized by a diadem〈古〉（王冠或头带代表的）王权（或王的尊严）：the princely diadem.
高贵的王权。
派生词
diademed
adjective词源
Middle English: from Old French diademe， via Latin from Greek diadēma 'the regal headband of the Persian kings'， from diadein 'bind round'.