heart of wood, pith (see Karttunen)
CUAUHYŌLLOH-TLI heart of wood, pith / corazón de palo (T) [(1)Tp.120]. See CUAHU(I)-TL, YŌLLOH-TLI. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 66.