a young man who is growing up or has grown up already (see Molina)
Orthographic Variants:
omacic iyolloco telpuchtli
Alonso de Molina:
omacic iyolloco telpuchtli. mozo de edad ya crecida. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 76r. col. 2. Thanks to Joe Campbell for providing the transcription.