Where does “stropisty” come from?

stropisty (Polish) comes from Polish strop, from Proto-Slavic stropъ, from Proto-Slavic sropъ, from Proto-Indo-European ḱrapo-, from Proto-Indo-European krāwə- — to cover, heap.

Ancestry of “stropisty”, step by step

StepLanguageWordMeaning
1Polishstropceiling; roof
2Proto-Slavicstropъroof; ceiling
3Proto-Slavicsropъ—
4Proto-Indo-Europeanḱrapo-roof
5Proto-Indo-Europeankrāwə-to cover, heap
Every word from Proto-Indo-European krāwə- →Every word from Proto-Indo-European ḱrapo- →Every word from Proto-Slavic sropъ →