Where does “knallrød” come from?

knallrød (Norwegian Bokmål) comes from Norwegian Bokmål rød, from Old Norse rauðr, from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

knallrød (Norwegian Bokmål): bright red, scarlet

Definitions

  1. bright red, scarlet

Ancestry of “knallrød”, step by step

knallrød traces back through two separate lines of ancestry.

via Norwegian Bokmål rød

StepLanguageWordMeaning
1Norwegian Bokmålrødred
2Old Norserauðrred
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā—
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via Norwegian Bokmål knall

StepLanguageWordMeaning
1Norwegian Bokmålknallbang, crack, detonation, explosion; !; great!...
2Norwegian Bokmålknalle—
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Celtic dūnom →Every word from Proto-Germanic *dūnā →