Arch`duke" (&?;), n.
[Pref. arch- + duke.]
A prince of the
imperial family of Austria.
&fist; Formerly this title was assumed by the rulers of Lorraine, Brabant,
Austria, etc. It is now appropriated to the descendants of the imperial family of Austria through the make line, all such male
descendants being styled archduke, and all such female descendants archduchesses.