A chief fool; the greatest or most complete fool; sometimes a title for a royal entertainer.
From Greek 'archi-' (chief) + 'fool' (from Latin 'follis' bellows, metaphorically an empty person). In medieval courts, sometimes a formal position for a witty jester.
Medieval kings actually employed 'archfools'—officially licensed comedians who could roast the king himself without losing their head, because everyone knew the fool's job was to speak truth through jokes!
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