captress

noun

1. a female captor.

   “At least the captress gets, or thinks she has got, what she wants.”

   “Murmurs of expectation, like the purrings of hungry flame, arose from the nearest, who hoped to share in the good fortune of the sorcerer's captress.”

   “Where did the notion that its captress should be a virgin come from? Again, this was likely to be an Indian trait.”