Gunwale
Gunwale , noun
[Gun + wale. So named because the upper guns were pointed from it.]
(Nautical) The upper edge of a vessel's or boat's side; the uppermost wale of a ship (not including the bulwarks); or that piece of timber which reaches on either side from the quarter-deck to the forecastle, being the uppermost bend, which finishes the upper works of the hull.