to swirl or form a whirlpool (speaking of a river) (see Molina)
Alonso de Molina:
maxicyotia. (pret. omaxicyoti) ahocinarse el rio Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 54v. col. 2. Thanks to Joe Campbell for providing the transcription.