The story
The area in and between the two valleys of the river Grwyney, which use their Welsh names, Grwyne Fawr and the smaller Grwyne Fechan.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A community (civil parish) in south-east Powys, Wales, on the border with Monmouthshire. Full definition →
The area in and between the two valleys of the river Grwyney, which use their Welsh names, Grwyne Fawr and the smaller Grwyne Fechan.
Etymology from Wiktionary, CC BY-SA 4.0.