one who has been instructed and taught by another (see Molina)
Alonso de Molina:
teyoliuhtlamachtilli. instruido y enseñado de otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 95r. col. 1. Thanks to Joe Campbell for providing the transcription.