an office or a chamber where the valuables are stored, guarded (see Molina)
Alonso de Molina:
tlatquipialoyan. lugar, o camara donde se guarda la hazienda. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 142r. col. 2. Thanks to Joe Campbell for providing the transcription.