This is the 8175th most frequent Polish word.
oksywskiej
The term "oksywskiej" is the feminine singular genitive or dative form of "oksywski," which means "related to Oksywie," a district in Gdynia, Poland.
Used as an adjective derived from Oksywie, denoting something belonging or related to it, here referring to a street named after Oksywie.
Mieszkałem na ulicy Oksywskiej przez dwa lata.
I lived on Oksywska Street for two years.
Here 'oksywskiej' describes the league, associating it with the Oksywie area, indicating provenance or affiliation.
Nasza drużyna kibicuje klubowi oksywskiej ligi piłkarskiej.
Our team supports the club of the Oksywska football league.
In this context, 'oksywskiej' describes a writer originating from or associated with Oksywie.