náhuatl
Náhuatl is the indigenous Mexican language that was once spoken by the Aztecs and which has given us such words as "tomato", "avocado", "chocolate" and "chilli". The first book to be printed on the American continent was a catechism in náhuatl, edited by a Franciscan monk in 1539. Today náhuatl is spoken in the central plateau of Mexico by a million bilingual and monolingual speakers.
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