to take effect in Polish:

1. wejść w życie

Polish word "to take effect"(wejść w życie) occurs in sets:

business book unit 5: legal issues
NAFTA, explained with a toy car
MSG II sem. (15.04)
Legal issues
angielski w biznesie

2. zadziałać

Polish word "to take effect"(zadziałać) occurs in sets:

extreme sports & health