Where does “toothwash” come from?

toothwash (English) comes from English wash, from Middle English washen, from Old English wasċan, from Proto-West Germanic waskan, from Proto-Germanic waskaną, from Proto-Germanic watskaną, from Proto-Indo-European wed-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

toothwash (English): A lotion for cleaning or whitening the teeth

Definitions

  1. A lotion for cleaning or whitening the teeth

Ancestry of “toothwash”, step by step

toothwash traces back through two separate lines of ancestry.

via English wash

StepLanguageWordMeaning
1EnglishwashTo clean with water; To move or erode by the...
2Middle Englishwashen
3Old Englishwasċanto wash
4Proto-West Germanicwaskanto wash
5Proto-Germanicwaskanąto wash
6Proto-Germanicwatskanąto wash, get wet
7Proto-Indo-Europeanwed-water
8Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...

via English tooth

StepLanguageWordMeaning
1EnglishtoothA hard, calcareous structure present in the mouth...
2Middle EnglishtothAlternative form of tothe
3Old Englishtōþtooth
4Proto-Germanictanþstooth
5Proto-Indo-Europeanh₃dóntstooth
6Proto-Indo-Europeanh₁ed-to eat
Every word from Proto-Indo-European wey-Every word from Proto-Indo-European wed-Every word from Proto-Germanic watskaną