chiyahualtia.

Headword: 
chiyahualtia.
Principal English Translation: 

to make something dirty, greasy (see Karttunen)

Orthographic Variants: 
chiyāhualtiā
IPAspelling: 
tʃiyɑːwɑltiɑː
Frances Karttunen: 

CHIYĀHUALTIĀ to make something dirty, greasy / lo hace grasiento (Z) [(2)Zp.64,187]. Z has the shortened form CHĀHUALTIĀ. Both attestations give the vowel of the second syllable as long, but it should probably be short. See CHIYĀHUAC.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 54.