from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
TO ENJOIN. To command; to require; as, private individuals are not only
permitted, but enjoined by law to arrest an offender when present at the
time a felony is committed or dangerous wound given, on pain of fine and
imprisonment if the wrong doer escape through their negligence. 1 Hale, 587;
1 East, P. C. 298,304; Hawk. B. 2, c. 12, s. 13; R. & M. C. C. 93. 2. In a
more technical sense, to enjoin, is to command or order a defendant in
equity to do or not to do a particular thing by writ of injunction. Vide
Injunction.