a guardian or doorman of a large patio (see Molina)
IPAspelling:
ɑitwɑllɑpiʃki
Alonso de Molina:
aithuallapixqui. guarda o portero de patio grande. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 3v. col. 2. Thanks to Joe Campbell for providing the transcription.