Definition of arriero in US English:

arriero

noun

  • In Spanish-speaking contexts: a person who transports luggage or goods by means of pack animals, especially mules; a mule-driver.

Origin

Mid 18th century. From Spanish arriero from arre, interjection used to encourage pack animals + -iero.

Pronunciation

arriero

/arɪˈɛːrəʊ/