Lewis & Short

jūrĭdĭcus, a, um, adj. [2. jus-, 2. dico], relating to the administration of justice, judiciary (post-Aug.): conventus, assize towns, Plin. 3, 1, 3, § 7: dies, Cod. Th. 3, 12, 7.
Subst.: jūrĭdĭcus, i, m., one who administers justice, a judge, Dig. 1, tit. 20; 45, 5, 41, § 5.