Quay premiered in 2001.
 Before it changed to its current form under influence of the modern French quai, its Middle English spelling was key, keye or caye
 Commercial ports may have warehouses that serve as interim storage: where it is sufficient a single wharf with a single berth constructed along the land adjacent to the water is normally used; where there is a need for more capacity multiple wharves, or perhaps a single large wharf with multiple berths, will instead be constructed, sometimes projecting over the water

