The principal or supreme person responsible for corrupting, morally degrading, or causing decay in something or someone.
From arch- (chief, supreme) + corrupter (from Latin corruptus, past participle of corrumpere, 'to spoil or destroy'). The archcorrupter is the chief agent of corruption.
In medieval moral writing, the Devil himself was called the archcorrupter of humanity—the ultimate source of all moral decay and wickedness, making the term sound absolutely terrifying to religious audiences.
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