Often, when people are announced or mentioned in the news, their name is prefixed by a title that gives rhythm and balance to the sound of their name. For example, we sometimes hear "Libyan strongman Muammar Gaddafi". I'm pretty sure his title is not "strongman", but this prefix gives rhythm and balance to his name.
I have a vague recollection long ago of knowing the origin of this practice (Chaucer, I think) and a name for it. I've tried every way of searching for it, but I can't find it. Am I remembering wrong, or is there a word or phrase for this?