Where does “zófka” come from?

zófka (Kashubian) comes from Kashubian -ka, from Proto-Slavic -ъka, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

Ancestry of “zófka”, step by step

StepLanguageWordMeaning
1Kashubian-kaforms feminine nouns, sometimes diminutive in nature
2Proto-Slavic-ъkaDenominal, forms diminutives; Deadjectival,...
3Proto-Indo-European-kosCreates deadjectival and desubstantival...
Every word from Proto-Indo-European -kos →Every word from Proto-Slavic -ъka →Every word from Kashubian -ka →