To inflict intense pain or mental distress on (someone); to torture.
To torment; to torture.
To make someone into a martyr by putting them to death for adhering to, or acting in accordance with, some belief, especially religious; to sacrifice on account of faith or profession.
To persecute.
One who sacrifices their life, station, or something of great personal value, for the sake of principle or to sustain a cause.
One who willingly accepts being put to death for adhering openly to one's religious beliefs; notably, saints canonized after martyrdom.
One who suffers greatly and/or constantly, even involuntarily.