quechtequi.

Headword: 
quechtequi.
Principal English Translation: 

to decapitate or cut someone's head (see Molina)

Alonso de Molina: 

quechtequi. nite. (pret. onitequechtec.) degollar, o cortar la cabeza a otro.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 88v. col. 1. Thanks to Joe Campbell for providing the transcription.

themes: 
War, Conflict