noun / verb
decree
dih-KREE/dɪˈkriː/
An authoritative order or decision, or the act of issuing one.
The judge issues a decree to the waiting clerk.

Etymology
The root meaning “separate” developed into distinguishing and deciding. A decree is a decision given authoritative force: not merely a judgment, but an official order.
In context
he arose from his throne laid aside his robe covered himself with sackcloth and sat in ashes and he caused it to be proclaimed and published throughout Nineveh by the decree of the king