enjoiner

enUK

en·join

E0150000 (ĕn-join′)tr.v. en·joined, en·join·ing, en·joins 1. a. To direct (a person) to do something; order or urge: The doctor enjoined the patient to walk daily.b. To require or impose (an action or behavior, for example) with authority and emphasis; prescribe.2. To prohibit or forbid: The judge enjoined the merger of the firms. The court enjoined the company from merging with its competitor.
[Middle English enjoinen, from Old French enjoindre, from Latin iniungere : in-, causative pref.; see en-1 + iungere, to join; see yeug- in Indo-European roots.]
en·join′er n.en·join′ment n.