Googled terms: Aztec + ship-building, maritime history, naval history, ships, transportation, etc.; various online Nahuatl dictionaries and language essays
1) In my story, an Aztec ship explores up the coast of N. America; I am pretty sure the Aztec never built ships, but would like that confirmed (suggestions for search terms much appreciated).
2) The Aztec settlement in my story has four main locations which need names. I would like *not* to use real place-names, but I would like them to be gramatically correct (in modern Nahuatl is fine) and not too precious. The names I am considering are: Ayoaatlan ('river place'), Xochiyan ('conch-shell place'), Pistican or Pistemec ('black place', 'black hills' - hopefully implying north), and Achtonco or Achtopan ('first [landing] place'). As I only speak English and Japanese, if any of these are rude in any other language, please let me know *does not want to be rude*