bemistress
/biːˈmɪstrɪs/Definitions
1. noun
A woman who is in charge of the household or estate, especially when the master is away.
“The bemistress of the estate ensured everything ran smoothly while the master was traveling.”
2. noun
An older or more experienced woman who is a mistress or housekeeper in a household.
“The bemistress of the mansion had been with the family for decades.”