archdukedom


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arch·duke

 (ärch-do͞ok′, -dyo͞ok′)
n.
1. In certain royal families, especially that of imperial Austria, a nobleman having a rank equivalent to that of a sovereign prince.
2. Used as a title for such a nobleman.

[Obsolete French archeduc : arche-, arch- (from Old French; see arch-1) + duc, duke (from Old French; see duke).]

arch·duke′dom n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

archdukedom

(ɑːtʃˈdjuːkdəm)
n
the territory ruled by an archduke or archduchessthe position or rank of an archduke
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014