a person captured or held captive: often in metaphorical usage: a prisoner of love
ME < OFr prisonier
See prisoner in American Heritage Dictionary 4
A person held in custody, captivity, or a condition of forcible restraint, especially while on trial or serving a prison sentence.
One deprived of freedom of expression or action: “He was a prisoner of his own personality—of that given set of traits that . . . predisposed him to see the world in a certain way, to make certain moves, certain choices”(William H. Hallahan).