diadem

名词 diadem:

1. an ornamental jewelled headdress signifying sovereignty
   同义词：crown

1. A diadem was worn as sign of royal power.
   戴着的皇冠是王权的象征。

di.a.dem

n.（名词）
A crown worn as a sign of royalty.
王冠：做为王权象征的王冠
Royal power or dignity.
王权或王的尊严
v.tr.（及物动词）
di.a.demed,di.a.dem.ing,di.a.dems
To adorn with or as if with a diadem.
为…加冕：以或似以象征王权的头带装饰

来源：
Middle English diademe
中古英语 diademe
from Old French
源自 古法语
from Latin diadôma
源自 拉丁语 diadôma
from Greek [band]
源自 希腊语 [箍带]
from diadein [to bind around]
源自 diadein [捆绑]
dia- [dia-]
dia- [前缀，表.完全的，有始有终的.]
dein dô- [to bind]
dein dô- [捆]