Where does “kvadratrod” come from?
kvadratrod (Danish) comes from Danish rød, from Old Danish røth, from Old Norse rauðr, from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.
kvadratrod (Danish): square root
Ancestry of “kvadratrod”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Danish | rød | red |
| 2 | Old Danish | røth | — |
| 3 | Old Norse | rauðr | red |
| 4 | Old English | dūn | hill, down; hill, dune; hill, mountain |
| 5 | Proto-Germanic | *dūnā | — |
| 6 | Proto-Celtic | dūnom | stronghold, rampart |
| 7 | Proto-Indo-European | dʰewh₂- | smoke; mist, haze |