to recognize, or make something certain (see Molina)
Alonso de Molina:
yollo maci. no. (pret. onoyollo macic. vel. noyollo omacic.)
reconocer, o certificarse de algo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 40r. col. 2. Thanks to Joe Campbell for providing the transcription.