to draw something out into a point, to sharpen something (see Karttunen)
PĪPINOĀ vt to draw something out into a point, to sharpen something / le saca punta (T)[(3)Tp.197].
PĪPINALHUIĀ applic. PĪPINOĀ.
-PĪPINŌLŌ nonact. PĪPINOĀ. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 196.