chatelaine
/ˈʃætəleɪn/noun
1- dated a woman in charge of a large house〈旧〉大宅邸的女主人。
1.1
- historical a set of short chains attached to a woman's belt, used for carrying keys or other items〈史〉（女人腰带上悬挂钥匙等的）短链子。
词源
mid 19th cent.: from French chatelaine, feminine of châtelain 'castellan'， from medieval Latin castellanus （see CHATELAIN）.