Where does “tjedno” come from?

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

tjedno (Serbo-Croatian): weekly

Definitions

  1. weekly

Ancestry of “tjedno”, step by step

StepLanguageWordMeaning
1Serbo-Croatiantjȅdanweek period of seven days
2Proto-Slavictъdьnьweek
3Proto-Slavictъthis, that
4Proto-Balto-Slavictasthat
5Proto-Indo-Europeansóthis; that
Every word from Proto-Indo-European só →Every word from Proto-Balto-Slavic tas →Every word from Proto-Slavic tъ →