Webster's Revised Unabridged Dictionary · 1913

Enjoin

Enjoin , transitive verb

[French enjoindre, Latin injungere to join into, charge, enjoin; in + jungere to join. See Join, and compare Injunction.]

1.
To lay upon, as an order or command; to give an injunction to; to direct with authority; to order; to charge.
High matter thou enjoin'st me. — Milton
I am enjoined by oath to observe three things. — Shakespeare
2.
(Law) To prohibit or restrain by a judicial order or decree; to put an injunction on.
This is a suit to enjoin the defendants from disturbing the plaintiffs. — Kent

Enjoin has the force of pressing admonition with authority; as, a parent enjoins on his children the duty of obedience. But it has also the sense of command; as, the duties enjoined by God in the moral law. “This word is more authoritative than direct, and less imperious than command.”

Enjoin , transitive verb

To join or unite. [Obsolete] — Hooker