a fabric that is used to cover (wrap) the dead body for proper burial (see Molina)
Alonso de Molina:
micca tequimiloloni. mortaja. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 56r. col. 1. Thanks to Joe Campbell for providing the transcription.