A person who abolishes or works to end something, especially an unjust system or practice.
From abolish plus the agent suffix -er (from Old English -ere), meaning 'one who abolishes,' parallel to similar formations like 'teacher,' 'builder,' 'runner.'
Many abolitionists called themselves 'abolishers' because they saw themselves as actively doing the work of ending slavery, not just supporting the abstract principle—the word choice mattered for implying action.
Complete word intelligence in one call. Free tier — 50 lookups/day.