nontli. mudo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 73v. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
NŌN-TLI someone mute / mudo (M) [(2)Zp.86,179,(2)Xp.59] Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 174.