cihua cahuallo pixqui.

(a loanword from Spanish)

Headword: 
cihua cahuallo pixqui.
Principal English Translation: 

one who keeps the mares (?), or female horses (see Molina)
(partly a loanword from Spanish, caballo, horse)

Orthographic Variants: 
ciua cauallo pixqui, cihua caballo pixqui
Alonso de Molina: 

ciua cauallo pixqui. yeguarizo.
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.