tonehuan.

Headword: 
tonehuan.
Principal English Translation: 

between us, the other person and I (see Molina)

Orthographic Variants: 
toneuan
Alonso de Molina: 

toneuan. yo y el, o entrambos.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 149v. col. 2. Thanks to Joe Campbell for providing the transcription.