a natural thing; or, that's the way it is (see Molina); just already like that
Orthographic Variants:
çanyeyuhqui, zan yeyuhqui, zan ye iuhqui, çan ye yuhqui, çan ye iuhqui
Alonso de Molina:
zanyeyuhqui. cosa natural, o que es assi. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 14r. col. 2. Thanks to Joe Campbell for providing the transcription.