Youngster has been used since the 16th century as a word for a young person with a lot of spunk. It has also long been used by maritime people as a word for a midshipman who has served less than four years. This use is connected with the Dutch word younker, which, like "youngster," refers to a young person as well as a young seaman. "Oldster" came about as a word used to differentiate the inexperienced midshipmen, or youngsters, from the experienced ones. To be exact, an oldster is a midshipman of four years' standing. Charles Dickens gets credit for the earliest known use of "oldster" in the general sense of "an old person." In his 1848 novel Dombey & Son he wrote, "Her eyes would play the Devil with the youngsters before long - 'and the oldsters too, Sir, if you come to that,' added the Major."