@LS-Jebus
it was not a sort of critizism at your way of finding names. It was just a tipp for longer time periods. In the ethmological perspective "Toronto" is a young name. That the people start to speak it in a different way is a serious sign for a name change in the future. But maybe not in our lives, and not in the live of or children or their children. It is a very long period.
When you say that harran is part of the modern language, than it is, in a ethmological perspective, young as well. And Words that are used often in every day live change their shape even faster.
But thats really not necessary in the type of maps you want to create, you only need it for creating a continent with a(known) history of thousands of years.