to put grain in silage, to put it into a granary (see Molina)
Alonso de Molina:
tlallan cuezcomac nitlatlalia. (pret. tlallan cuezcomac onitlatlali.) ensilar trigo, o cosa assi. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 124r. col. 1. Thanks to Joe Campbell for providing the transcription.