tezcatlachco.

a type of ball game involving a mirror and the sacrifice of captives relating to the sign "omacatl" (Two Reed) (sixteenth century, Quauhtinchan)
Historia Tolteca-Chichimeca, eds. Paul Kirchhoff, Lina Odena Güemes, y Luis Reyes García (México: CISINAH, INAH-SEP, 1976), 172, note 3.