Where does “曖昧さ” come from?

曖昧さ (Japanese) comes from Japanese さ, from Middle Chinese 左.

曖昧さ (Japanese): ambiguity

Definitions

  1. ambiguity

Ancestry of “曖昧さ”, step by step

曖昧さ traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesethird person personal pronoun; they; -ness;...
2Middle Chinese

via Japanese 曖昧

StepLanguageWordMeaning
1Japanese曖昧ambiguity, obscurity, opacity
2Middle Chinese曖昧
Every word from Middle Chinese