What does عزَّ نصره mean in Ottoman coins?

https://preview.redd.it/14q8tlo6caje1.png?width=1024&format=png&auto=webp&s=10307810ad7bcc10a1b8d63d579ab82e295df3ea

It says: عزَّ نصره، ضُرب في قُسطنطينيَّة ۱۲٥٥