a type of huipil (Indigenous woman's blouse) that has colored trim and the rest white (see Molina)
Orthographic Variants:
uipiltlappoyahuac
Alonso de Molina:
uipiltlappoyauac. camisa de india que tiene la trama colorada y lodemas blanco. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 157v. col. 1. Thanks to Joe Campbell for providing the transcription.