Where does “eth” come from?
eth (Old Danish) comes from Old Norse eiðr, from Proto-Germanic aiþaz, from Proto-Indo-European oyt-.
Ancestry of “eth”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Norse | eiðr | oath |
| 2 | Proto-Germanic | aiþaz | oath |
| 3 | Proto-Indo-European | oyt- | — |