Where does “þiǣnist” come from?

þiǣnist (Old Swedish) comes from Proto-Germanic þewanōstaz, from Proto-Indo-European tekʷ- — to run, to flow.

Ancestry of “þiǣnist”, step by step

StepLanguageWordMeaning
1Proto-Germanicþewanōstazservice
2Proto-Indo-Europeantekʷ-to run, to flow
Every word from Proto-Indo-European tekʷ- →Every word from Proto-Germanic þewanōstaz →