Where does “cwm” come from?
cwm (Welsh) comes from Proto-Celtic kumbā, from Proto-Indo-European kumbʰo-, from Proto-Indo-European keu- — bend; vault, hole; to shine; light; bright.
cwm (Welsh): valley, dale, glen
Ancestry of “cwm”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Celtic | kumbā | valley |
| 2 | Proto-Indo-European | kumbʰo- | — |
| 3 | Proto-Indo-European | keu- | bend; vault, hole; to shine; light; bright |