poctlantilia.

Headword: 
poctlantilia.
Principal English Translation: 

to destroy or mistreat someone (see Molina)

IPAspelling: 
poːktɬɑːntiliɑ
Alonso de Molina: 

poctlantilia. nite. (pret. onitepoctlantili.) aniquilar, o maltratar a otro.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 83r. col. 1. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

Vitzilobuchtli: qujncentepotzti, vel qujnpopolo, vel quimixtlati, vel qujnpoctlantili = Uitzilopochtli quite overpowered them; he made them turn tail; he destroyed them in battle. He completely bested and ill-used them (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 3 -- The Origin of the Gods, Part IV, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1978), 4.