slander, libel, deceit, lies (see Molina)
teiztlacauiliztli. calunia, engaño, o mentira. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 96r. col. 2. Thanks to Joe Campbell for providing the transcription.