The story
- Latin · derived fromdux“leader, commander, duke”
- Latin · derived fromarchi-
- French · derived fromarchiduché
- English todayarchduchy
From French archiduché, from Middle French, itself from archi- (“arch-”) < Latin archi- + duché (“duchy, dukedom”) < Latin dux (“leader, commander, duke”).
Words from the same roots
Latinarchi- all →
archipelagoarch-
Latindux all →
duchyduxdossilDuchy of Normandydux bellorumIl Duce
Etymology from Wiktionary, CC BY-SA 4.0.