Where does “tannbørste” come from?

tannbørste (Norwegian Bokmål) comes from Norwegian Bokmål børste, from German Bürste, from Middle High German bürste, from Old High German burst, from Proto-Germanic burstiz, from Proto-Germanic bʰurstís, from Proto-Indo-European bʰr̥s-tí-s, from Proto-Indo-European bʰers- — top, tip, point.

tannbørste (Norwegian Bokmål): a toothbrush

Definitions

  1. a toothbrush

Ancestry of “tannbørste”, step by step

tannbørste traces back through two separate lines of ancestry.

via Norwegian Bokmål børste

StepLanguageWordMeaning
1Norwegian Bokmålbørstea brush; to brush
2GermanBürstebrush
3Middle High Germanbürste—
4Old High Germanburstbristle
5Proto-Germanicburstizbristle
6Proto-Germanicbʰurstís—
7Proto-Indo-Europeanbʰr̥s-tí-s—
8Proto-Indo-Europeanbʰers-top, tip, point

via Norwegian Bokmål tann

StepLanguageWordMeaning
1Norwegian Bokmåltanna tooth; prong
2Old Norsetǫnntooth
3Proto-Germanictanþstooth
4Proto-Indo-Europeanh₃dóntstooth
5Proto-Indo-Europeanh₁ed-to eat
Every word from Proto-Indo-European bʰers- →Every word from Proto-Indo-European bʰr̥s-tí-s →Every word from Proto-Germanic bʰurstís →
tannbørste — Etymology, Origin & Word History | Etymology Explorer