to turn yellow, to ripen (see Karttunen)
COZĒHU(I) to turn yellow, to ripen / se pone amarillo, madura (T) [(1)Tp.116,(2)Zp.9,146]. See COZĒHU(A). Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 43.