to become deafened or to have a buzzing noise in the ears (see Molina)
Alonso de Molina:
nacaztetecuica. no. (pret. ononacaztetecuicac.) zumbarme los oydos, o atronarme. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 062r. col. 2. Thanks to Joe Campbell for providing the transcription.