archduke means the son or male-line grandson of an emperor of the Austro-Hungarian Empire. Lexicurio rates it Distinctive — a strength score of 67 out of 100.
Etymology
From Middle French archeduc (modern French archiduc), from Latin archidux. Equivalent to arch- + duke.
noun
- 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.”
- The ruler of an archduchy, in particular the Archduchy of Austria.