Where does “glödtråd” come from?

glödtråd (Swedish) comes from Swedish träd, from Old Norse þráðr, from Proto-Germanic þrēduz, from Proto-Indo-European treh₁-tu-, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.

glödtråd (Swedish): a filament (in an incandescent light bulb or the like)

Definitions

  1. a filament (in an incandescent light bulb or the like)

Ancestry of “glödtråd”, step by step

glödtråd traces back through two separate lines of ancestry.

via Swedish träd

StepLanguageWordMeaning
1Swedishträdtree; tree; plant reminiscent of a tree in the...
2Old Norseþráðrthread; past participle of þreyja; past...
3Proto-Germanicþrēduzthread, twisted fibre
4Proto-Indo-Europeantreh₁-tu-—
5Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce

via Swedish glöda

StepLanguageWordMeaning
1Swedishglödato glow
2Old Swedishglø̄dhato glow
Every word from Proto-Indo-European terh₁- →Every word from Proto-Indo-European treh₁-tu- →Every word from Proto-Germanic þrēduz →