It is the name given to the peanuts in Mexico, and by extension in many countries Central and South American.Derives from the word nahuatl "cacahuatl", in the same way as "avocado" elsewhere is derived from "aguacatl". The same happens with "chocolatl" (chocolate).Nahuatl was the language spoken by the Aztecs, and some other villages of its empire, at the time of the arrival of the Spaniards.