h₂eḱ-r-

“sharp point, summit”

Widely acceptedsharpnesselevation

Source of Latin acer, English acrid, acrobat, acropolis

Extended sharpness root, yielding Latin acer (sharp) and English acrid, acrobat, acropolis.‍‌‌‍‍‌‌‍‍‌‌‍‌‍‌‍‍‌‍‌‍‍‍‌‌‌‍‌‌‌‌‌

bʰerǵ-₂“high, lofty, elevated”bʰerǵ-mn̥“high place, mountain”bʰerǵʰ-mn̥-“height, elevated place”bʰerǵʰ-tó-“raised up, elevated, proud”h₃eḱ-“to be swift, sharp”h₂eḱ-men-₂“sharpness, point of stone”h₂eḱ-men-₃“stone tool, sharp implement”h₂eḱ-mn̥-₂“edge, blade, sharp line”