1. plural of archdukedom; the territories ruled by archdukes or the rank and dignity of an archduke
Usage: historical

Examples

• The Habsburg archdukedoms were scattered across central Europe.
• Several archdukedoms were consolidated under imperial rule.
• The map showed the boundaries of various archdukedoms in the 16th century.
• These archdukedoms maintained their own customs and laws.
• The emperor granted new archdukedoms to his loyal supporters.