-iyaca.

Headword: 
-iyaca.
Principal English Translation: 

the stench of something (a necessarily possessed form; see Karttunen)

Orthographic Variants: 
-ihyāca
IPAspelling: 
-ihyɑːkɑ
Frances Karttunen: 

-IHYĀCA necessarily possessed form the stench of something / hediondez (C) [(2)Cf.49v]. This contrasts with the element ĪYACA- to be found in some compounds and having to do with noses or points, as in M’s iyacamecayo ‘(horse’s) bridle.´ The latter is formed from YAC(A)-TL ‘nose’ with the possessive prefix Ī-. See (I)HYĀYA.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 102.