countess

詳細解釋：

count.ess

n.（名詞）
A woman holding the title of count or earl.
女伯爵：具有伯爵或郡主頭銜的女人

The wife or widow of a count in various European countries.
伯爵夫人，伯爵的未亡人：許多歐洲國家的伯爵的妻子或遺孀
The wife or widow of an earl in Great Britain.
伯爵夫人或遺孀：英國伯爵的妻子或遺孀
Used as a title for such a noblewoman.
用來稱呼這種女人的頭銜

來源：
Middle English countes
中古英文 countes
from Old French contesse [feminine of] conte [count] * see count 2
源自 古法文 contesse [] conte的陰性詞 [伯爵] *參見 count2