very high/tall in stature, high priority or picked up (see Molina)
IPAspelling:
mɑhkokki
Alonso de Molina:
macocqui. empinado, o levantado. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 51r. col. 1. Thanks to Joe Campbell for providing the transcription.