Cwm Onnau
valley · Powys - Powys
WelshSurmised
Suggested2 sources · name elements
This valley name is derived from the Welsh 'cwm' meaning valley and 'onnau', which is the plural of 'onnen', meaning ash tree. It refers to a valley with many ash trees.
Word origins
- Cwm
- Welshvalley(from cwm "valley")
- onnau
- Welshash trees(from onnen "ash tree")