Where does “тѫдоу” come from?

тѫдоу (Old Church Slavonic) comes from Proto-Slavic tǫda, from Proto-Slavic tъ, from Proto-Balto-Slavic tas, from Proto-Indo-European só — this; that.

Ancestry of “тѫдоу”, step by step

StepLanguageWordMeaning
1Proto-Slavictǫdathere, thither
2Proto-Slavictъthis, that
3Proto-Balto-Slavictasthat
4Proto-Indo-Europeansóthis; that

Words derived from “тѫдоу”

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