Where does “sidu” come from?

sidu (Old Saxon) comes from Proto-West Germanic *sidu, from Proto-Germanic siduz, from Proto-Indo-European swedʰ- — custom, habit; wont, habit, custom.

Ancestry of “sidu”, step by step

StepLanguageWordMeaning
1Proto-West Germanic*siducustom, habit, practice
2Proto-Germanicsiduzcustom, habit, practice; conduct
3Proto-Indo-Europeanswedʰ-custom, habit; wont, habit, custom

Words derived from “sidu

Every word from Proto-Indo-European swedʰ-