Where does “Elgoibar” come from?

Elgoibar (English) comes from Basque Elgoibar, from Basque ibar, from Proto-Basque *ibar — valley.

Ancestry of “Elgoibar”, step by step

StepLanguageWordMeaning
1BasqueElgoibar—
2Basqueibarvalley
3Proto-Basque*ibarvalley
Every word from Proto-Basque *ibar →Every word from Basque ibar →Every word from Basque Elgoibar →