inamorata
/ɪnæmɒˈrɑːtə, -məˈrɑːtə/Definitions
1. noun
a woman with whom one is romantically or sexually infatuated, often with an obsessive or all-consuming passion.
“The young poet became enamored with his inamorata, a beautiful and charming young artist.”
2. noun
a female lover or mistress.
“The 19th-century novel featured a complicated love triangle between the protagonist, his wife, and his inamorata.”