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

StepLanguageWordMeaning
1Japanesetooth; age
2Middle Chinese
Every word from Proto-Indo-European bʰers-Every word from Proto-Indo-European bʰr̥s-tí-sEvery word from Proto-Germanic bʰurstís