This is the 8625th most frequent Polish word.
pszennej
"Pszennej" means "of wheat" or "wheat-based" in English.
Here, 'pszennej' refers to 'pole' (field) and characterizes it as a wheat field, indicating its agricultural use.
Pole pszennej było bardzo piękne o zachodzie słońca.
The wheat field was very beautiful at sunset.
Here, 'pszennej' is an adjective derived from 'pszenica', meaning 'wheat', which modifies 'mąka' (flour) to indicate its quality or origin.
W sklepie kupiłem mąkę pszennej jakości.
In the store, I bought flour of wheat quality.
In this sentence, 'pszennej' is used as an adjective to describe the type of flour ('mąka') used for making the cake.