a trader, exchanger, barterer (see Molina); or, one who makes mortar (see Sahagún)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 10 -- The People, No. 14, Part 11, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 28.
Alonso de Molina:
tlapatlani. cambiador o trocador assi. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 131r. col. 2. Thanks to Joe Campbell for providing the transcription.