iznequixtiliztli.

Headword: 
iznequixtiliztli.
Principal English Translation: 

presumptiousness (see Molina)

Alonso de Molina: 

iznequixtiliztli. presumpcion tal.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 49r. col. 1. Thanks to Joe Campbell for providing the transcription.