Where does “bistrô” come from?

bistrô (Portuguese) comes from French bistro, from Russian бы́стро, from Russian бы́стрый, from Old East Slavic быстрыи, from Proto-Slavic bystrъ, from Proto-Indo-European bʰūsro-.

bistrô (Portuguese): bistro small European-style restaurant

Definitions

  1. bistro small European-style restaurant

Ancestry of “bistrô”, step by step

StepLanguageWordMeaning
1Frenchbistrobistro
2Russianбы́строquickly
3Russianбы́стрыйfast, quick, speedy, rapid
4Old East Slavicбыстрыи—
5Proto-Slavicbystrъquick; penetrating, transparent
6Proto-Indo-Europeanbʰūsro-—
Every word from Proto-Indo-European bʰūsro- →Every word from Proto-Slavic bystrъ →Every word from Old East Slavic быстрыи →