Where does “втёмную” come from?

втёмную (Russian) comes from Russian [[тёмный.

втёмную (Russian): without seeing the opponent's cards; without showing one's cards

Definitions

  1. without seeing the opponent's cards; without showing one's cards

Ancestry of “втёмную”, step by step

втёмную traces back through two separate lines of ancestry.

via Russian [[тёмный

StepLanguageWordMeaning
1Russian[[тёмный

via Russian тёмную]]

StepLanguageWordMeaning
1Russianтёмную]]
Every word from Russian [[тёмный