from fifteen things one thing; or from fifteen pairs one pair
Orthographic Variants:
in caxtullamantli centlamantli
Alonso de Molina:
in caxtullamantli centlamantli. de quinze cosas vna, o de quinze pares vn par. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 38v. col. 1. Thanks to Joe Campbell for providing the transcription.