Where does “bukareszteńczyk” come from?

bukareszteńczyk (Polish) comes from Polish Bukareszt, from Romanian București, from Romanian -ești, from Latin -ēscō, from Proto-Italic *-ēskō.

Ancestry of “bukareszteńczyk”, step by step

StepLanguageWordMeaning
1PolishBukareszt—
2RomanianBucureștiBucharest
3Romanian-eștiplural of -esc; Used with a stem to form the...
4Latin-ēscōAttaches to a stem (a noun or adjective) to form a verb meaning “to become [stem]” or similar
5Proto-Italic*-ēskō—
Every word from Proto-Italic *-ēskō →Every word from Romanian -ești →Every word from Latin -ēscō →