The cowboy has deep historic roots tracing back to Spain and the earliest European settlers of the Americas.
The word "cowboy" appeared in the English language by 1725. It appears to be a direct English translation of vaquero, a Spanish word for an individual who managed cattle while mounted on horseback. It was derived from vaca, meaning "cow," which came from the Latin word vacca. Another English word for a cowboy, buckaroo, is an Anglicization of vaquero.
At least one linguist has speculated that the word "buckaroo" derives from the Arabic word bakara or bakhara, also meaning "heifer" or "young cow", and may have entered Spanish during the centuries of Islamic rule