petztic.

Headword: 
petztic.
Principal English Translation: 

something smooth, shiny, slippery (see Karttunen)

IPAspelling: 
petstik
Frances Karttunen: 

PETZTIC something smooth, shiny, slippery / pulido, brillante, reluciente, barnizado, fino, liso (S) [(2)Tp.136, (I)Xp.63]. X has reduced TZT to ZT. See PETZIHU(I).
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 193.