Where does “Berno” come from?

Berno (Esperanto) comes from German Bern, from German Bernd, from German Bernhard, from Old High German Bernhart, from Old High German hart, from Proto-West Germanic hard(ī), from Proto-Germanic harduz, from Proto-Indo-European kert- — to travel, tour.

Ancestry of “Berno”, step by step

Berno traces back through two separate lines of ancestry.

via German Bern

StepLanguageWordMeaning
1GermanBern
2GermanBerndan anon
3GermanBernhardBernard
4Old High GermanBernhart
5Old High Germanharthard
6Proto-West Germanichard(ī)hard
7Proto-Germanicharduzhard; brave
8Proto-Indo-Europeankert-times; to weave, twist together; time
9Proto-Turkic*keŕ-to travel, tour

via Italian Berna

StepLanguageWordMeaning
1ItalianBerna
Every word from Proto-Turkic *keŕ-