Where does “rio” come from?
rio (Manx) comes from Old Irish réud, from Proto-Celtic ɸreswos, from Proto-Indo-European prews- — to freeze; frost.
rio (Manx): frost; ice; freeze
Ancestry of “rio”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Irish | réud | frost |
| 2 | Proto-Celtic | ɸreswos | — |
| 3 | Proto-Indo-European | prews- | to freeze; frost |