Where does “歯ブラシ” come from?

歯ブラシ (Japanese) comes from Japanese ブラシ, from English Brush, from Middle English brusshe, from Old French broisse, from Vulgar Latin brustia, from Icelandic bursti, from Proto-Germanic burstiz, from Proto-Germanic bʰurstís — top, tip, point.

歯ブラシ (Japanese): a toothbrush

Definitions

  1. a toothbrush

Ancestry of “歯ブラシ”, step by step

歯ブラシ traces back through two separate lines of ancestry.

via Japanese ブラシ

StepLanguageWordMeaning
1Japaneseブラシbrush
2EnglishBrushAn implement consisting of multiple more or less flexible bristles or other filaments attached to a handle, used for any of various purposes including cleaning, painting, and arranging hair
3Middle Englishbrusshe—
4Old Frenchbroisse—
5Vulgar Latinbrustia—
6Icelandicburstibrush
7Proto-Germanicburstizbristle
8Proto-Germanicbʰurstís—
9Proto-Indo-Europeanbʰr̥s-tí-s—
10Proto-Indo-Europeanbʰers-top, tip, point

via Japanese 歯

StepLanguageWordMeaning
1Japanese歯tooth; age
2Middle Chinese齒—
Every word from Proto-Indo-European bʰers- →Every word from Proto-Indo-European bʰr̥s-tí-s →Every word from Proto-Germanic bʰurstís →