a pueblo already founded, already established (see Molina)
IPAspelling:
ɑːltepeːtɬɑːliːlli
Alonso de Molina:
altepetlalilli. pueblo ya fundado. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 4r. col. 2. Thanks to Joe Campbell for providing the transcription.