Where does “ab” come from?
ab (Middle Irish) comes from Old Irish aub, from Proto-Celtic abū, from Proto-Indo-European h₂ep- — water, body of water.
ab (Middle Irish): river
Ancestry of “ab”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Irish | aub | river |
| 2 | Proto-Celtic | abū | river |
| 3 | Proto-Indo-European | h₂ep- | water, body of water |