Where does “ありそうもない” come from?

ありそうもない (Japanese) comes from Japanese も, from Old Japanese も, from Proto-Japonic mə, from Arabic مَن — who?; who.

ありそうもない (Japanese): improbable, unlikely

Definitions

  1. improbable, unlikely

Ancestry of “ありそうもない”, step by step

ありそうもない traces back through two separate lines of ancestry.

via Japanese も

StepLanguageWordMeaning
1JapaneseもUsed to form the conjectural form of verbs,...
2Old Japaneseもnon-unique topic marker: also, even
3Proto-Japonicmənon-unique topic marker: also, even, too, as well
4Arabicمَنwho?; who

via Japanese ない

StepLanguageWordMeaning
1Japaneseないhaving that quality, having that state; very much...
2Old Japaneseない—
Every word from Arabic مَن →Every word from Proto-Japonic mə →Every word from Old Japanese も →