Where does “ru” come from?
ru (Middle Dutch) comes from Old Dutch rū, from Proto-Germanic rūhaz, from Proto-Indo-European h₃rewk-, from Proto-Indo-European h₃er- — to move, to stir; to rise, to spring; to quarrel,...
Ancestry of “ru”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Dutch | rū | — |
| 2 | Proto-Germanic | rūhaz | rough |
| 3 | Proto-Indo-European | h₃rewk- | to dig; to till |
| 4 | Proto-Indo-European | h₃er- | to move, to stir; to rise, to spring; to quarrel,... |