Lieutenant

Lieutenant was a rank held by officers in the Royal Navy. The word was derived from French; the lieu meaning "place" as in a position; and tenant meaning "holding" as in "holding a position"; thus a "lieutenant" is somebody who holds a position in the absence of his superior.

James Norrington held the position of Lieutenant during Weatherby Swann's crossing to the Caribbean from England. Shortly thereafter he was promoted to the rank of Captain, and, ultimately, Commodore.