Webster’s Revised Unabridged Dictionary · 1913
Chaparajos
Cha′pa·ra′jos, n. pl. [Mex. Sp.] Overalls of sheepskin or leather, usually open at the back, worn, esp. by cowboys, to protect the legs from thorny bushes, as in the chaparral; — called also chapareras or colloq. chaps. [Sp. Amer.]