Where does “дятел” come from?
дятел (Ukrainian) comes from Proto-Slavic dętelъ, from Proto-Balto-Slavic delbtelas, from Proto-Indo-European dʰelbʰ-tel-o-s, from Proto-Indo-European dʰelbʰ- — to dig, excavate.
дятел (Ukrainian): woodpecker
Ancestry of “дятел”, step by step