a worked shirt collar or the like (see Molina); suggestive of sewn designs (in a personal communication from León García-Garagarza, 6 July 2025)
Alonso de Molina:
tlaquechcuicuilolli. cabezon de camisa labrado o cosa semejante. s. collar. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 134r. col. 1. Thanks to Joe Campbell for providing the transcription.