Spanish Loanwords

horsetail bristles (see Molina)
(partially a loanword from Spanish; caballo, horse)

to go or get around by horse (see Molina)
(partially a loanword from Spanish; caballo, horse)

a veterinary surgeon, a veterinarian
(partially a loanword from Spanish; caballo, horse)

groomsman, who works with horses; a horse keeper (see Molina)
(partially a loanword from Spanish; caballo, horse); also seen translated as arriero, muleteer

the headstall of a halter (see Molina, i.e. jáquima)
(partially a loanword from Spanish; caballo, horse)

to feed the horses (see Molina)
(partially a loanword from Spanish; caballo, horse)

things having to do with horses (see Molina)
(partially a loanword from Spanish; caballo, horse)

a saddle for a horse (see Molina)
(partially a loanword from Spanish; caballo, horse)

people from Castile (Castilla), i.e. Spaniards
(includes a loanword from Spanish, Nahuatlized)

the Spanish language (attested in modern Nahuatl)

Victoriano de la Cruz Cruz, Facebook posting, June 5, 2014, Nahuatlahtolli page.

Spaniard (from the Spanish word, Castilla, plus the Nahuatl suffix for "person of")
James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 213.

the leaf of a tree, or an herb with wide leaves

a ham of bacon, or a piece of something, a slice of something, or a large slice of fish (see Molina)
(partially a loanword from Spanish, tocino, bacon)

stocks, for punishment; a trap
(a loanword from Spanish)