Where does “athro” come from?
athro (Middle Welsh) comes from Proto-Celtic altrawū, from Proto-Celtic aleti, from Proto-Indo-European h₂életi, from Proto-Indo-European h₂el- — to grow, nourish; beyond, other; to wander, roam.
Ancestry of “athro”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Celtic | altrawū | foster-uncle; foster uncle |
| 2 | Proto-Celtic | aleti | to nourish, grow |
| 3 | Proto-Indo-European | h₂életi | to be nourishing |
| 4 | Proto-Indo-European | h₂el- | to grow, nourish; beyond, other; to wander, roam |
Words derived from “athro”