IPA: /ˈɑːrkˌdjuːkəl/
KK: /ˈɑːrkˌdjuːkəl/
Relating to an archduke or the territory ruled by an archduke.
The archducal family held great influence in the region during the 19th century.
Archducal → It is formed from "arch-" (from Greek "archon", meaning chief or principal) and "ducal" (from Latin "ducalis", meaning pertaining to a duke). The word "archducal" refers to something that is of or relating to an archduke, who is a chief or principal duke.
Think of 'chief' ('arch-') and 'duke' ('ducal') to remember that 'archducal' means relating to a chief duke.