zan achi.

Headword: 
zan achi.
Principal English Translation: 

very little; or, just a little (an adverb)

Orthographic Variants: 
çan achi
Alonso de Molina: 

zan achi. poca cosa, o vmpoquito. (aduerbio.)
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 14r. col. 1. Thanks to Joe Campbell for providing the transcription.