archducal

形容词 archducal:

1. belonging to or befitting an archduke or his archduchy

arch.du.cal

adj.（形容词）
Of or having to do with an archduke or an archduchy.
大公爵的：大公爵或大公爵领地的或与之有关的

来源：
French archiducal
法语 archiducal
from archiduc [archduke] * see archduke
源自 archiduc [大公爵] *参见 archduke