Where does “Kozicka” come from?

Kozicka (Polish) comes from Polish Kozicki, from Serbo-Croatian kòzice, from Serbo-Croatian kȍža, from Proto-Slavic koža, from Proto-Slavic -ja, from Proto-Indo-European -yeh₂.

Ancestry of “Kozicka”, step by step

StepLanguageWordMeaning
1PolishKozicki—
2Serbo-Croatiankòzicesmallpox
3Serbo-Croatiankȍža—
4Proto-Slavickožaskin; leather
5Proto-Slavic-jaSuffix creating feminine action nouns, usually...
6Proto-Indo-European-yeh₂—
Every word from Proto-Indo-European -yeh₂ →Every word from Proto-Slavic -ja →Every word from Proto-Slavic koža →