Where does “zgorzelecki” come from?

zgorzelecki (Polish) comes from Polish Zgorzelec, from Lower Sorbian Zgórjelc, from Proto-Slavic gorěti, from Proto-Balto-Slavic garḗˀtei, from Proto-Indo-European gʷʰer-, from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr.

Ancestry of “zgorzelecki”, step by step

StepLanguageWordMeaning
1PolishZgorzelec—
2Lower SorbianZgórjelc—
3Proto-Slavicgorětito burn
4Proto-Balto-Slavicgarḗˀteito burn
5Proto-Indo-Europeangʷʰer-warm, hot
6Proto-Indo-Europeangʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr—
Every word from Proto-Indo-European gʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr →Every word from Proto-Indo-European gʷʰer- →Every word from Proto-Balto-Slavic garḗˀtei →