something being entrusted to someone else to guard (see Molina)
Alonso de Molina:
tetlapialtilli. cosa encomendada y dada guardar a otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 109r. col. 1. Thanks to Joe Campbell for providing the transcription.