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Classical NahuatlEdit

The glyph for the day sign cōātl “snake”, from the Codex Magliabechiano.

Alternative formsEdit


This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.


  • IPA(key): [ˈkoː.aːt͡ɬ], [ˈkoː.(w)aːt͡ɬ], [ˈko.waːt͡ɬ]


cōātl (animate, plural cōcōah)

  1. snake, serpent
  2. twin
  3. The fifth day sign of the Aztec tōnalpōhualli, represented conceptually by a snake.
    • 16C: Codex Magliabechiano, f. 11v.
      chicuei coatl q̇ / quiere dezir ocho / culebras.
      chicuei coatl. which means “eight snakes”.

Derived termsEdit



  • Alonso de Molina (1571) Vocabulario en lengua castellana y mexicana y mexicana y castellana, Editorial Porrúa, pages 83v, 23r
  • Rémi Siméon (1885) Diccionario de la lengua náhuatl o mexicana, Siglo Veintiuno Editores, page 115
  • Laurette Séjourné (1981) El pensamiento náhuatl cifrado por los calendarios, Siglo Veintiuno Editores, page 20