to engage in a fair or to trade in the marketplace (see Molina)
Alonso de Molina:
tianquiztoca. ni. feriar, o tratar en mercado. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 113r. col. 1. Thanks to Joe Campbell for providing the transcription.