nieznanej
Nieznanej is the feminine singular form of the Polish adjective nieznany (unknown). It functions as an inflected form used to modify feminine nouns and occurs in different grammatical cases—primarily genitive, dative, and locative—when the noun it describes is in those cases. For example, nieznanej krainy (genitive of nieznana kraina), nieznanej osobie (dative of nieznana osoba), and w nieznanej krainie (locative with preposition w). In each case the meaning remains that the noun is unknown or unfamiliar.
Etymology and meaning: nieznanej derives from the negation prefix nie- added to znany (known). The compound expresses
Usage: The form nieznanej appears in both literary and everyday Polish, typically in phrases referring to something
Notes: nieznanej is not a proper noun; it is a grammatical form tied to the feminine noun