Etymology

Probably onomatopoeic in origin. Likely cognate with Spanish charlar ‎(“to chat”). Possibly contributes to the original sense of ciarlatano ‎(“charlatan”), formed after Carlomagno ‎(“Charlemagne”), for the fantastic stories told by romancers of his paladins ^[1]. Conversely still, a derivation from Latin ex ‎(“from, out of”) + hariolor ‎(“I foretell; I prattle”) has been conjectured, cognate with Latin haruspex^[2].