Where does “むとす” come from?

むとす (Japanese) comes from Japanese と, from Old Japanese と, from Proto-Japonic tə, from Proto-Uralic tä — that.

Ancestry of “むとす”, step by step

むとす traces back through 3 separate lines of ancestry.

via Japanese と

StepLanguageWordMeaning
1Japaneseとwith; and; a particle following a phrase or...
2Old Japaneseと—
3Proto-Japonictəplace
4Proto-Uralictäthat

via Japanese す

StepLanguageWordMeaning
1Japaneseすto do; 巣 nest, hive, den; 酢 vinegar
2Old Japaneseすto do; to happen, occur; to be in a state of...
3Proto-Japonic*sunest

via Japanese む

StepLanguageWordMeaning
1JapaneseむUsed to indicate a mumbling sound; Used to form...
2Middle Chinese無—
Every word from Proto-Uralic tä →Every word from Proto-Japonic tə →Every word from Old Japanese と →