zan ipan.

Headword: 
zan ipan.
Principal English Translation: 

something medium; somewhat; or, in some way

Orthographic Variants: 
zanipan, çanipan, çan ipan cualli, çan ipan
Alonso de Molina: 

zanipan. cosa manual o mediana, o algun tanto, o en alguna manera.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 14v. col. 1. Thanks to Joe Campbell for providing the transcription.

Horacio Carochi / English: 

çan īpan, çan īpan qualli = medium
Horacio Carochi, S.J., Grammar of the Mexican language with an explanation of its adverbs (1645), translated and edited with commentary by James Lockhart, UCLA Latin American Studies Volume 89 (Stanford: Stanford University Press, UCLA Latin American Center Publications, 2001), 499.

See also: 
zan ipan cualli.
zan ipan yectli.