DUX

dux  (d<<schwa>>ks),  n.[fr.  Latin  ducere  “to  lead”]  1.Roman  law.  An  army  commander.

2.Roman law. A military governor of a province. • This term was eventually used also as a title of

distinction. 3.Hist. (cap.) Duke; a title of nobility. See DUKE. [Blacks Law 8th]