Where does “seith” come from?
seith (Old Breton) comes from Proto-Brythonic seiθ, from Proto-Celtic sextam, from Proto-Indo-European septḿ̥ — seven.
Ancestry of “seith”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Brythonic | seiθ | seven |
| 2 | Proto-Celtic | sextam | seven |
| 3 | Proto-Indo-European | septḿ̥ | seven |