/ ɪnˈdʒɔɪn; NAmE / verb
1.
[ vn , vn to inf ] [ often passive ] ( formal ) to order or strongly advise sb to do sth; to say that a particular action or quality is necessary
2.
[ vn ] enjoin sb from doing sth ( law ) to legally prevent sb from doing sth, for example with an injunction
••
WORD ORIGIN
Middle English (formerly also as injoin ): from Old French enjoindre , from Latin injungere join, attach, impose, from in- in, towards + jungere to join.