According to a figurative etymology in the Florentine Codex of Sahagún (bk. 10, ch. 29, para. 14), "Tamoanchan probably means "We go down to our home".
 The word tamoanchan does not actually come from the
Nahuatl languages, but is instead demonstrated to have its roots in
Mayan etymology, with a meaning which could be
glossed as "place of the misty sky", or similar. Descriptions of Tamoanchan appearing in the
Florentine Codex indicate that the Postclassic
Nahuas thought of it being located in the humid lowlands region of the
Gulf Coast of Mexico, inhabited by the
Huastec Maya people.