Where does “blådåre” come from?

blådåre (Swedish) comes from Swedish blå, from Swedish trä, from Old Norse tré, from Proto-Germanic trewą, from English doru, from Ancient Greek δόρυ, from Proto-Hellenic dóru, from Proto-Indo-European dóru — hard, firm, strong, solid; hard, fast; tree.

blådåre (Swedish): an utter maniac, an utter madman (someone very reckless)

Definitions

  1. an utter maniac, an utter madman (someone very reckless)

Ancestry of “blådåre”, step by step

blådåre traces back through two separate lines of ancestry.

via Swedish blå

StepLanguageWordMeaning
1Swedishblåblue; of or pertaining to conservatives or...
2Swedishträwood; a tree; Short for slagträ
3Old Norsetrétree; the mast of a ship; ree, rafter, beam
4Proto-Germanictrewątree
5EnglishdoruAlternative form of dory
6Ancient Greekδόρυwood, tree, stem; spear shaft, spear, lance,...
7Proto-Hellenicdórutree
8Proto-Indo-Europeandórutree
9Proto-Indo-Europeandrew-hard, firm, strong, solid; hard, fast; tree

via Swedish dåre

StepLanguageWordMeaning
1Swedishdårea fool, a madman, a lunatic
2Old Swedishdāre
3Old Norsedári
4Middle Low Germandȫre
5Old Saxon*dōro
6Proto-West Germanic*dauʀōfool
Every word from Proto-Indo-European drew-Every word from Proto-Indo-European dóruEvery word from Proto-Hellenic dóru