archducal

adjective
arch·​du·​cal | \ (ˌ)ärch-ˈdü-kəl How to pronounce archducal (audio) , -ˈdyü-\

Definition of archducal

: of or relating to an archduke or archduchy

First Known Use of archducal

1665, in the meaning defined above

History and Etymology for archducal

French archiducal, from archiduc

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