something enclosed or fenced with a hedge or with walls (see Molina)
Orthographic Variants:
tlatzaquallo
Alonso de Molina:
tlatzaquallo. cosa cerrada o cercada con seto, o con paredes. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 142v. col. 1. Thanks to Joe Campbell for providing the transcription.