namaco. ni. (pret. oninamacoc.) ser vendido. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 062v. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
NAMACŌ altern. nonact. NAMACA .
NAMACA vt to sell something / vender algo (M) This verb commonly incorporates objects, yielding such constructions as OCNAMACA 'to sell pulque/ ĒLŌNAMACA 'to sell corn,’ etc. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 158.