to purchase one real's worth of bread (or some other thing)
Orthographic Variants:
cetica niccoa
Alonso de Molina:
cetica niccoa. (pret. cetica onicouh.) comprar un real de pan o de otra cosa. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 18v. col. 1. Thanks to Joe Campbell for providing the transcription.