cuatenextic.

Headword: 
cuatenextic.
Principal English Translation: 

someone gray-haired (see Karttunen)

Orthographic Variants: 
cuātenextic
IPAspelling: 
kwɑːteneʃtik
Frances Karttunen: 

CUĀTENEXTIC someone gray-haired / canoso, cano (Z) [(2)Zp.25,147]. In one of /K060/ the attestations Z mistakenly marks the vowel of the second syllable long. See CUĀ(I)-TL, TENEX-TLI.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 71.