Wait until you find out about Greenland and Iceland!

if you dig deep enough that's what almost all place names are, and as stupid as it feels it's a great way to make fantasy place names feel not stupid.

There are a series of cities on the northeastern coast of sweden that all lie near the mouth of a long river, and those cities are quite literally named [Name of the river valley]-stream, while the rivers themselves are named [Name of the river valley]-river. It's so profoundly stupid and yet no one ever thinks about it at all.
Luleå, on Lule älv. Piteå, on Pite älv. Umeå, on Ume älv. Etc etc..

It could be a bastardization of moorland, a type of shrubby biome similar to heath