Classical Nahuatl Etymology Borrowed from Spanish caballo, from Latin caballus. Noun cahuāyo (animate, plural cahuāyotin) Alternative form of cahuallo Eastern Huasteca Nahuatl Noun cahuayo Obsolete spelling of kawayo. References Sullivan, John; Olko, Justyna (2016); Tlahtolxitlauhcayotl, Chicontepec, Veracruz, Editorial Artes Liberales, Revitalizing Endangered Languages, IDIEZ, University of Warsow, Poland.Wikiwand - on Seamless Wikipedia browsing. On steroids.