aquen techihuani.

Headword: 
aquen techihuani.
Principal English Translation: 

an innocent person, or someone who does no wrong to anyone (see Molina)

Orthographic Variants: 
aquen techiuani
Alonso de Molina: 

aquen nopan. no me toca esse negocio, ni tengo cuenta con el.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 7r. col. 2. Thanks to Joe Campbell for providing the transcription.