tlaixnextia.

a ceremony that was performed by merchants, relating to the revelation of something; and food was served, making it a feast; but part of the ceremony involved dressing up slaves, making them dance, and displaying them on petates in front of the house, before they were slain
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 9 -- The Merchants, No. 14, Part 10, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1959), 59–60.