This is the 15086th most frequent Polish word.
rybackiej
"Rybackiej" means "fisherman's" or "fishing" (adjective form in Polish).
The word 'rybacka' describes the village as related to fishing or characteristic of fishermen.
Wioska rybacka w pobliżu jeziora była pełna życia.
The fishing village near the lake was full of life.
The word 'rybacka' qualifies the boat as being used for fishing purposes.
Stara łódź rybacka unosiła się na spokojnej wodzie.
The old fishing boat floated on the calm water.
The word 'rybackim' (variant of 'rybacka') modifies the market, indicating it's specifically a fishing market.