cihua cahuallo.

(a loanword from Spanish)

Headword: 
cihua cahuallo.
Principal English Translation: 

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.