A person who tricks or deceives others, especially through clever manipulation or fraud; a cheat.
From 'cog' as a verb (meaning to cheat or trick at dice), which comes from Old Norse origins. The suffix '-er' denotes someone who performs this action habitually.
In old slang, to 'cog' meant to cheat at dice by using weighted or altered dice—so a cogger was a professional con artist, basically a medieval grifter!
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