Antonio Pigafetta, Relazione del primo viaggio intorno al mondo, 1524: "Il capitano generale nominò questi popoli Patagoni." The original word would probably be in Magellan's native Portuguese (patagão) or the Spanish of his men (patagón). It has been interpreted later as "big foot" but the etymology refers to a literary character in a Spanish novel of the early XVI century (see text).
