charlatán
/t͡ʃaɾlaˈtan/ · B2 · adj
charlatan, quack
🗣️ charlatán = chatter + -atán: a talker who chatters on and on
Sounds like chatter plus a big ending: someone who talks nonstop. Spanish uses it for a chatterbox, and also for a quack or fraud who sells people empty words. The word can also name the laughingthrush, a noisy bird.