Definition of archdukedom in English:

archdukedom

noun

historical
  • Archduchy.

Pronunciation

archdukedom

/ˌɑːtʃˈdjuːkdəm/ /ˌɑːtʃˈdʒuːkdəm/

Origin

Early 16th century. From archduke + -dom, after dukedom.