the monthly period of a woman; or, a woman's blouse (see Molina)
Alonso de Molina:
ezuitumiliztli. costumbre, o camisa de muger. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 29v. col. 2. Thanks to Joe Campbell for providing the transcription.