verb

• (transitive, chiefly literary) To lay upon, as an order or command; to give an injunction to; to direct with authority; to order; to charge.
  "I am enjoin'd by oath to observe three things:"
• (transitive) To prescribe under authority; to ordain.
  "They [the Noahide laws] also enjoin the establishment of a just system of laws and courts."
• (transitive, law) To prohibit or restrain by a judicial order or decree; to put an injunction on.
  "In 1983, BLM was enjoined by court order from using any herbicides in its Medford, Oregon District. Subsequent court action in 1984 enjoined BLM from the use of herbicides throughout Oregon and the U.S. Forest Service was similarly enjoined throughout Region 6 (Pacific Northwest)."