Where does “運が開ける” come from?

運が開ける (Japanese) comes from Japanese 運, from Middle Chinese 運, from Middle Chinese 數, from Old Chinese 數.

運が開ける (Japanese): to have luck turn one's way

Definitions

  1. to have luck turn one's way

Ancestry of “運が開ける”, step by step

運が開ける traces back through 3 separate lines of ancestry.

via Japanese 運

StepLanguageWordMeaning
1Japanese運luck, fortune
2Middle Chinese運—
3Middle Chinese數—
4Old Chinese數—

via Japanese が

StepLanguageWordMeaning
1JapaneseがIndicates the subject of a sentence; conjunction;...
2Finnish-nkaForms nouns, mainly bird names (in dialects) and some toponyms

via Japanese 開ける

StepLanguageWordMeaning
1Japanese開けるto open
Every word from Old Chinese 數 →Every word from Middle Chinese 數 →Every word from Middle Chinese 運 →