injunct

As verbs the difference between interdict and injunct

is that interdict is (roman catholic) to exclude (someone or somewhere) from participation in church services; to place under a religious interdict while injunct is (legal|transitive) to put an injunction against.

As a noun interdict

is a papal decree prohibiting the administration of the sacraments from a political entity under the power of a single person (eg, a king or an oligarchy with similar powers) extreme unction/anointing of the sick is excepted.