Where does “garcysko” come from?

garcysko (Polish) comes from Polish -ysko, from Proto-Slavic -isko — Alternative form of *-išče.

Ancestry of “garcysko”, step by step

StepLanguageWordMeaning
1Polish-yskoforms augmentatives; forms nouns
2Proto-Slavic-iskoAlternative form of *-išče
Every word from Proto-Slavic -isko →Every word from Polish -ysko →