Where does “Eider” come from?
Eider (English) comes from Swedish ejder, from Low German eider, from Icelandic æður, from Old Norse æðr, from Proto-Germanic ēþrō, from Proto-Indo-European ēt-er- — stomach, intestines.
Ancestry of “Eider”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Swedish | ejder | eider; common eider, the species "Somateria... |
| 2 | Low German | eider | — |
| 3 | Icelandic | æður | eider; vein; wadable |
| 4 | Old Norse | æðr | vein; eider |
| 5 | Proto-Germanic | ēþrō | — |
| 6 | Proto-Indo-European | ēt-er- | stomach, intestines |