tecuitlahuitequiliztli.

Headword: 
tecuitlahuitequiliztli.
Principal English Translation: 

the act of breaking the back; or, a rupture of the muscles of the loins of horses (see Molina)

Orthographic Variants: 
tecuitlauitequiliztli
Alonso de Molina: 

tecuitlauitequiliztli. deslomadura.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 93v. col. 2. Thanks to Joe Campbell for providing the transcription.