tepitztic.

Headword: 
tepitztic.
Principal English Translation: 

something hard (see Molina)

IPAspelling: 
tepitstik
Alonso de Molina: 

tepitztic. cosa dura.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 103r. col. 2. Thanks to Joe Campbell for providing the transcription.