yenoyqnachi.

Headword: 
yenoyqnachi.
Principal English Translation: 

and at the same time, or at the same time (see Molina)

Alonso de Molina: 

yenoyqnachi. y almesmo tiempo, o aeste mesmo tiempo.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 35v. col. 1. Thanks to Joe Campbell for providing the transcription.