Where does “þyster” come from?

þyster (Old Swedish) comes from Proto-Germanic þusiþaz, from Proto-Germanic þusjaną, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

Ancestry of “þyster”, step by step

StepLanguageWordMeaning
1Proto-Germanicþusiþazsilent
2Proto-Germanicþusjanąto be calm
3Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

Words derived from “þyster”

Every word from Proto-Indo-European tewh₂- →Every word from Proto-Germanic þusjaną →Every word from Proto-Germanic þusiþaz →