Where does “jū” come from?
jū (Old Frisian) comes from Proto-West Germanic iwwiz, from Proto-Germanic izwiz, from Proto-Germanic *jūz, from Proto-Indo-European túh₂ — you, thou.
Ancestry of “jū”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-West Germanic | iwwiz | — |
| 2 | Proto-Germanic | izwiz | accusative/dative/instrumental of *jūz |
| 3 | Proto-Germanic | *jūz | — |
| 4 | Proto-Indo-European | túh₂ | you, thou |