polskiej
Polskiej is the feminine singular form of the Polish adjective polski (meaning Polish) used to express relation or origin. It is the genitive (and also the dative) form that modifies feminine nouns. In Polish, adjectives decline to agree with the gender, number, and case of the nouns they describe, so polskiej appears with feminine singular nouns in genitive or dative.
Common examples illustrate its use in context. Dziedzictwo polskiej kultury means “the heritage of Polish culture,”
Polskiej is not a standalone noun; it is an inflected adjective. In ordinary prose, it is written
In summary, polskiej serves as the feminine genitive/dative form of the Polish adjective meaning Polish, used