tenitztic.

Headword: 
tenitztic.
Principal English Translation: 

something sharp, that has an edge
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 10 -- The People, No. 14, Part 11, 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, 1961), 110.

IPAspelling: 
teːnitstik
Alonso de Molina: 

tenitztic. cosa aguda, o que tiene filo.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 99r. col. 2. Thanks to Joe Campbell for providing the transcription.