Where does “du” come from?
du (North Frisian) comes from Old Frisian thū, from Proto-West Germanic þū, from Proto-Germanic *þū, from Proto-Indo-European túh₂ — you, thou.
du (North Frisian): to do; to give
Ancestry of “du”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Frisian | thū | — |
| 2 | Proto-West Germanic | þū | you |
| 3 | Proto-Germanic | *þū | — |
| 4 | Proto-Indo-European | túh₂ | you, thou |