Where does “Ó Cathaláin” come from?
Ó Cathaláin (Irish) comes from Irish Cathalán, from Old Irish Cathal, from Proto-Celtic Katuwalos, from Proto-Celtic katus, from Proto-Indo-European kéh₃tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.
Ancestry of “Ó Cathaláin”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Irish | Cathalán | little Cathal |
| 2 | Old Irish | Cathal | — |
| 3 | Proto-Celtic | Katuwalos | strong in battle |
| 4 | Proto-Celtic | katus | battle |
| 5 | Proto-Indo-European | kéh₃tus | fight |
| 6 | Proto-Indo-European | -tus | Derives action nouns from verb roots |