hetaera

noun2

1. •
   (historical) A highly cultivated hired female companion who would entertain upper-class male clients and might perform sex acts for them.

   • But of course our friend is only a shallow twentieth-century reproduction of the great hetairae of the past, the type to which she belongs without knowing it, Lais, Charis and the rest... — 1957
2. •
   A mistress.

   • Woman is dethroned as the primary and supreme sex, debased into inseminable hetaera. — 1971