the stiffening of members that become erect or stiff (see Molina)
Orthographic Variants:
quaquauhtiliztli
Alonso de Molina:
quaquauhtiliztli. enuaramiento de miembros que se paran yertos. 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.