Where does “čtyřhra” come from?

čtyřhra (Czech) comes from Czech hra, from Old Czech jhra, from Proto-Slavic jьgra, from Proto-Balto-Slavic ígrāˀ.

čtyřhra (Czech): doubles

Definitions

  1. doubles

Ancestry of “čtyřhra”, step by step

čtyřhra traces back through two separate lines of ancestry.

via Czech hra

StepLanguageWordMeaning
1Czechhraplay, game; game; play
2Old Czechjhraplay, game
3Proto-Slavicjьgraplay, game
4Proto-Balto-Slavicígrāˀ—

via Czech čtyř

StepLanguageWordMeaning
1Czechčtyř—
Every word from Proto-Balto-Slavic ígrāˀ →Every word from Proto-Slavic jьgra →Every word from Old Czech jhra →