tanka
sa-ṭańka-śikharāḥ — having edges with points as sharp as stone picks;
SB 8.10.46
tańkā — rupees;
CC Adi 12.32
ṭańka-chaṭābhiḥ — by chisels;
CC Antya 1.167
ṭańka — like the chisel;
CC Antya 16.52