archduke
noun /ˌɑːtʃˈdjuːk/
/ˌɑːrtʃˈduːk/
- (in the past) a son of the Emperor of Austria
- Archduke Franz Ferdinand
Word Originearly 16th cent.: from Old French archeduc, from Latin archidux, archiduc-, from archi- ‘chief’ + dux, duc- ‘leader’; related to ducere ‘to lead’.