tepetztli.

Headword: 
tepetztli.
Principal English Translation: 

smooth stone (see Karttunen)

IPAspelling: 
tepetstɬi
Frances Karttunen: 

TEPETZ-TLI pl: -MEH smooth stone / piedra lisa (T) [(1)Tp.225]. See TE-TL, PETZ-TLI.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 230.