to extend the body of another person in the shape of a St. Andrew cross(?) (see Molina)
Orthographic Variants:
quaquammatia
Alonso de Molina:
quaquammatia. nite. (pret. onitequaquammati.) enhaspar a otro. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 85v. col. 1. Thanks to Joe Campbell for providing the transcription.