A person who falsely claims to have special knowledge or skill; a fraud or quack, especially in medicine.
From French, ultimately from Italian 'ciarlatano,' possibly from 'ciarlare' (to chatter). Originally referred to vendors who sold dubious remedies while chattering persuasively in public squares.
Think 'chatter-latin' - charlatans use fancy-sounding but meaningless chatter to deceive people into thinking they're experts. They're all talk, no substance.
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