Where does “tandbørste” come from?

tandbørste (Danish) comes from Danish tand, from Old Danish tan, from Old Norse tǫnn, from Proto-Germanic tanþs, from Proto-Indo-European h₃dónts, from Proto-Indo-European h₁ed- — to eat.

tandbørste (Danish): toothbrush

Definitions

  1. toothbrush

Ancestry of “tandbørste”, step by step

tandbørste traces back through two separate lines of ancestry.

via Danish tand

StepLanguageWordMeaning
1Danishtandtooth; prong
2Old Danishtan—
3Old Norsetǫnntooth
4Proto-Germanictanþstooth
5Proto-Indo-Europeanh₃dóntstooth
6Proto-Indo-Europeanh₁ed-to eat

via Danish børste

StepLanguageWordMeaning
1Danishbørstebristle; a brush; rough
2Icelandicburstibrush
3Proto-Germanicburstizbristle
4Proto-Germanicbʰurstís—
5Proto-Indo-Europeanbʰr̥s-tí-s—
6Proto-Indo-Europeanbʰers-top, tip, point
Every word from Proto-Indo-European h₁ed- →Every word from Proto-Indo-European h₃dónts →Every word from Proto-Germanic tanþs →