Difference between Arrogation and Confiscation

What is the difference between Arrogation and Confiscation?

Arrogation as a noun is to unjustly assume rights or privilege to something of which one does not have rights for privilege to. while Confiscation as a noun is the act or process of confiscating an item from public use; expropriation

We hope you now know whether to use Arrogation or Confiscation in your sentence.