to recognize something, or to realize something that was previously misunderstood (see Molina)
Alonso de Molina:
yollo ipan yauh. no. (pret. noyollo ipan oya.) reconocer algo, o caer enla cuenta delo que no entendia bien. 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.