something that causes constipation a blockage in the bowel (see Molina)
Alonso de Molina:
tecuitla tlali. cosa que restriñe las camaras. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 93v. col. 2. Thanks to Joe Campbell for providing the transcription.