: a small hardy wild horse of the western United States that is descended from horses brought in by the Spaniards
Word History of MUSTANG
Centuries ago in Spain, stray cattle were rounded up each year and sold. The Spanish word for this roundup of strays, mesta, came from a Latin phrase that meant “mixed animals” (animalia mixta). From mesta, the Spanish made another word, mestengo, that meant “a stray animal.” In Mexico, this word was used for a kind of wild horse. That is where English mustang came from.