Ah, I mean - do your names have a meaning to them? Amongst my folk, it is not unusual for someone to choose a new name, after something significant happens, for example, or simply because the old one no longer fits. Take my brother, for example - I call him 'Nelyo', which is short for 'Nelyafinwe', which was his father-name, and means 'third Finwe' - but he prefers 'Maedhros', which can be translated as 'Red-haired and shapely'.