I need a word to describe a girl who is a "comfort woman" in my fantasy novel. This is not a voluntary position. She is sold into slavery and confined in a fortress by a warlord. Time spent with her is a reward for soldiers for a job well done.
Concubine.
jade, trull, slut, prostitute, chit, tart, cyprian, wench, floozie, demimondaine, ianfu
In the definition, in Merriam's and elsewhere, I didn't see anything reference "one man," only "a man." The word derives from "to lie down," which I thought suited your context well.Don't think so.
A concubine is tied to one man only. This girl has to spend time with anyone who has been a good soldier.
Not quite - most of those I think of as terms for a woman who has voluntarily engaged in prostitution or promiscuous behaviour
but thank you for the thought