Where does “Erno” come from?

Erno (Finnish) comes from Finnish Ernesti, from German ērnst, from Middle High German ërnest, from Old High German ernust, from Proto-Germanic ernustuz, from Proto-Germanic arniz, from Proto-Indo-European er- — eagle, bird; loose, light, rare, sparse; to fail,...

Ancestry of “Erno”, step by step

StepLanguageWordMeaning
1FinnishErnestiErnest
2Germanērnst
3Middle High Germanërnest
4Old High Germanernustserious
5Proto-Germanicernustuzseriousness; earnest; strength; solidity;...
6Proto-Germanicarnizefficient, capable, diligent, sure
7Proto-Indo-Europeaner-eagle, bird; loose, light, rare, sparse; to fail,...
Every word from Proto-Indo-European er-Every word from Proto-Germanic arnizEvery word from Proto-Germanic ernustuz