the act of ruining things, destruction (see Molina)
Alonso de Molina:
xixiniliztli. desemboltura tal, o destrucion. &c. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 160r. col. 1. Thanks to Joe Campbell for providing the transcription.