Where does “mouthrinse” come from?

mouthrinse (English) comes from English rinse, from Middle English rinsen, from French raïncer, from Old Norse hreinsa, from Proto-Germanic hrainisōną, from Proto-Germanic hrainiz, from Proto-Indo-European króy-n-is, from Proto-Indo-European krey- — to sift, separate, divide.

mouthrinse (English): A liquid used to rinse out the mouth

Definitions

  1. A liquid used to rinse out the mouth

Ancestry of “mouthrinse”, step by step

mouthrinse traces back through two separate lines of ancestry.

via English rinse

StepLanguageWordMeaning
1EnglishrinseTo wash quickly using water and no soap; To...
2Middle Englishrinsen
3Frenchraïncer
4Old Norsehreinsato make clean, cleanse; to purge, clear
5Proto-Germanichrainisōnąto clean, cleanse, purify
6Proto-Germanichrainizclean, not dirty; pure; innocent
7Proto-Indo-Europeankróy-n-is
8Proto-Indo-Europeankrey-to sift, separate, divide

via English mouth

StepLanguageWordMeaning
1EnglishmouthThe opening of a creature through which food is...
2Middle EnglishmouþAlternative form of mouth
3Old Englishmūþmouth, opening, door, gate
4Proto-West Germanic*munþmouth
5Proto-Germanicmunþazmouth
6Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...
Every word from Proto-Indo-European krey-