You got me wondering so, here's what I found onlne.
broncho
\Bron"cho\, n. [Sp. bronco rough, wild.] A native or a Mexican horse of small size. [Western U.S.]
Source: Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
broncho
n : an unbroken or imperfectly broken mustang [syn: bronco, bronc]
Source: WordNet ® 2.0, © 2003 Princeton University
