archduke
nounEtymology From Middle French archeduc (modern French archiduc), from Latin archidux. Equivalent to arch- + duke.
1
Historical The son or male-line grandson of an emperor of the Austro-Hungarian Empire.
- World War I traditionally started with the assassination of Archduke Francis (Franz) Ferdinand.
2
Historical The ruler of an archduchy, in particular the Archduchy of Austria.
- Derived terms
- archdukedom
- Related terms
- archduchess, duke, emperor, grand duke, imperial, noble, prince, royal