This is the 3105th most frequent Polish word.
prezentem
The Polish word "prezentem" means "gift" or "present" in the instrumental case.
In this sentence, 'prezentem' is the instrumental case of 'prezent', used after 'z' which requires this case.
Cieszę się, że jesteś zadowolony z tego prezentem.
I am glad that you are happy with this gift.
Here, 'prezentem' is used as an instrumental case form, indicating an action done with the gift.
Podzieliła się swoim prezentem z innymi.
She shared her gift with others.
In this situation, 'prezentem' denotes the instrumental case in describing the subject of my choice.