decree

(noun) a legally binding command or decision entered on the court record (as if issued by a court or judge). Synonyms: edict, fiat, order, rescript. Examples: "A friend in new mexico said that the order caused no trouble out there."

(verb) issue a decree. Examples: "The king only can decree."

(verb) decide with authority. Synonyms: rule. Examples: "The king decreed that all firstborn males should be killed."