martyr
/ˈmɑːtə/
noun: martyr; plural noun: martyrs
a person who is killed because of their religious or other beliefs. a person who displays or exaggerates their discomfort or distress in order to obtain sympathy.
verb: martyr; 3rd person present: martyrs; past tense: martyred; past participle: martyred; gerund or present participle: martyring
kill (someone) because of their beliefs.
Origin
Old English martir, via ecclesiastical Latin from Greek martur ‘witness’ (in Christian use, ‘martyr’)