Where does “tъdьnь” come from?

tъdьnь (Proto-Slavic) comes from Proto-Slavic tъ, from Proto-Balto-Slavic tas, from Proto-Indo-European só — this; that.

tъdьnь (Proto-Slavic): week

Definitions

  1. week

Ancestry of “tъdьnь”, step by step

tъdьnь traces back through two separate lines of ancestry.

via Proto-Slavic tъ

StepLanguageWordMeaning
1Proto-Slavictъthis, that
2Proto-Balto-Slavictasthat
3Proto-Indo-Europeansóthis; that

via Proto-Slavic dьnь

StepLanguageWordMeaning
1Proto-Slavicdьnьday
2Proto-Balto-Slavicdein-—

Words derived from “tъdьnь”

Every word from Proto-Indo-European só →Every word from Proto-Balto-Slavic tas →Every word from Proto-Slavic tъ →