Where does “Drozd” come from?

Drozd (English) comes from Polish Drozd, from Old Polish drozd, from Proto-Slavic drozdъ, from Proto-Balto-Slavic trozdós, from Proto-Indo-European trósdos.

Ancestry of “Drozd”, step by step

StepLanguageWordMeaning
1PolishDrozdthrush
2Old Polishdrozdsong thrush
3Proto-Slavicdrozdъthrush
4Proto-Balto-Slavictrozdós—
5Proto-Indo-Europeantrósdos—
Every word from Proto-Indo-European trósdos →Every word from Proto-Balto-Slavic trozdós →Every word from Proto-Slavic drozdъ →