Where does “Orzel” come from?

Orzel (English) comes from Polish Orzeł, from Old Polish orzeł, from Proto-Slavic orьlъ, from Proto-Balto-Slavic *arélis, from Proto-Indo-European h₃érō — eagle.

Ancestry of “Orzel”, step by step

StepLanguageWordMeaning
1PolishOrzełAquila constellation
2Old Polishorzeł—
3Proto-Slavicorьlъeagle
4Proto-Balto-Slavic*aréliseagle
5Proto-Indo-Europeanh₃érōeagle
Every word from Proto-Indo-European h₃érō →Every word from Proto-Balto-Slavic *arélis →Every word from Proto-Slavic orьlъ →