atlauhtontli.

Headword: 
atlauhtontli.
Principal English Translation: 

stream, or a small canyon with or without water (see Molina); the translation stream suggests that atlauhtli would also have meant river in early Nahuatl, as it does today in contemporary Eastern Huastecan Nahuatl

Alonso de Molina: 

atlauhtontli. arroyo o barranca pequeña, con agua o sin ella.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 8v. col. 1. Thanks to Joe Campbell for providing the transcription.