Where does “wirt” come from?

wirt (Old Dutch) comes from Proto-Germanic werduz, from Proto-Germanic (H)uer-.

Ancestry of “wirt”, step by step

StepLanguageWordMeaning
1Proto-Germanicwerduzhost
2Proto-Germanic(H)uer-—
Every word from Proto-Germanic (H)uer- →Every word from Proto-Germanic werduz →