mistrailing

Verb

mistrail (third-person singular simple present mistrails, present participle mistrailing, simple past and past participle mistrailed)

1. (ambitransitive) To gallop in such a way that the rear hoof lands in line with the place where the front hoof on the opposite side landed.
   • again, the imprint of the posterior foot in question may be made in front or behind that the diagonal anterior foot, and then the horse mistrails himself (se dépiste) .1892, Armand Goubaux, Gustave Barrier, Simon J. J. Harger, The Exterior of the Horse, page 475