in quenin.

Headword: 
in quenin.
Principal English Translation: 

like, just like (conjunction) (see Molina)

Alonso de Molina: 

in quenin. como, o assi como. conjunction.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 39r. col. 2. Thanks to Joe Campbell for providing the transcription.