a piece of linen, or a delicate and white large cloth or blanket (see Molina)
Alonso de Molina:
iztac petztic. lienzo, o manta delgada y blanca. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 49r. col. 2. Thanks to Joe Campbell for providing the transcription.