archduke

n. 大公

arch.duke

n.（名词）
In certain royal families, especially that of imperial Austria, a nobleman having a rank equivalent to that of a sovereign prince.
大公：在某些皇族尤指奥地利帝国中，具有与有主权的王子相等地位的贵族
Used as a title for such a nobleman.
大公：用作这样一个贵族的封号

来源：
Obsolete French archeduc
已废法语 archeduc
arche- [arch-]
arche- [前缀，表.主要的.]
duc [duke] * see duke
duc [公爵] *参见 duke