Definition of grand-dukedom in English:

grand-dukedom

noun

  • The territory of a Grand Duke or Duchess, a Grand Duchy; the office or dignity of a Grand Duke or Duchess (also personified).

Origin

Mid 17th century; earliest use found in 2nd Earl of Monmouth (1596–1661), translator. From grand + dukedom, after Grand Duke.

Pronunciation

grand-dukedom

/ˌɡran(d) ˈdjuːkdəm//ˌɡran(d) ˈdʒuːkdəm/