kāco:The strings of a balance or of a carrying pole; a "pingo" or carrying pole,viz.a pole placed over one shoulder with a rope fastend to each end,to which a burden is attached; as much of anything as a man can carry in a pingo,a man's load
Pali-Dictionary Vipassana Research Institute
Kāco
kāco:A siliceous earth or clay used in makings glass; glass; an inflammation of the eye