for wheat to scatter, or for snow to fall (see Molina)
Orthographic Variants:
chayaui
Alonso de Molina:
chayaui. (pret. ochayauh.) esparzirse assi trigo, o caer nieue. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 19r. col. 1. Thanks to Joe Campbell for providing the transcription.