archduchess

詳細解釋：

arch.duch.ess

n.（名詞）
The wife or widow of an archduke.
大公（爵）夫人：公爵妻子或遺孀
A woman, especially an Austrian princess, holding an archduchy in her own right.
女大公：自己掌握著一公國命脈的女子，尤指奧地利公主
Used as a title for such a noblewoman.
女大公：用作這樣一個貴婦人的頭銜

來源：
French archiduchesse [feminine of] archiduc [archduke] * see archduke
法文 archiduchesse [] archiduc的陰性詞 [大公爵] *參見 archduke