Printed from: https://conservationhandbooks.com/dry-stone-walling/rebuilding-a-free-standing-wall/coping/
The coping is the line of stones along the top of the wall which protects the structure beneath. Regional names include the cap, comb, cope or topping. The stones are called topstones, copestones or toppers. The coping weighs down the courses below, and bonds both faces together so that the wall settles into a solid...