From Longman Dictionary of Contemporary Englishflagellantfla‧gel‧lant /ˈflædʒələnt, fləˈdʒelənt/ noun [countable] formal RRCsomeone who whips themselves, especially as a religious punishment
Examples from the Corpus
flagellant• Although mad, flagellants are not cowards.• The frenzied wailing of the flagellants echoed through the night.• Sensing that he had the attention of the warriors the flagellant pulled himself up to his full height.• The flagellant warmed to his theme.