Where does “ptak” come from?

ptak (Lower Sorbian) comes from Proto-Slavic pъtakъ, from Proto-Slavic pъta, from Proto-Indo-European peth₂- — to spread out; to fly.

Ancestry of “ptak”, step by step

StepLanguageWordMeaning
1Proto-Slavicpъtakъbird
2Proto-Slavicpъtabird
3Proto-Indo-Europeanpeth₂-to spread out; to fly

Words derived from “ptak”

Every word from Proto-Indo-European peth₂- →Every word from Proto-Slavic pъta →Every word from Proto-Slavic pъtakъ →