a mare
(partly a Spanish loanword, caballo, horse)
Orthographic Variants:
ciua cauallo, cihua caballo
Alonso de Molina:
ciua cauallo. yegua. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 22v. col. 1. Thanks to Joe Campbell for providing the transcription.