Where does “mus” come from?
mus (Old Swedish) comes from Old Norse mús, from Proto-Germanic mūs, from Proto-Indo-European múh₂s — mouse.
Ancestry of “mus”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Norse | mús | — |
| 2 | Proto-Germanic | mūs | mouse |
| 3 | Proto-Indo-European | múh₂s | mouse |