an expression used to frighten away dogs, etc. James Richard Andrews, Introduction to Classical Nahuatl, (Norman: University of Oklahoma Press, 2003), vol. 1, 42.
IPAspelling:
ʃiw
Alonso de Molina:
xiuh. exe, para oxear perros. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 159v. col. 1. Thanks to Joe Campbell for providing the transcription.