duchal
Duchal is an adjective meaning of or relating to a duke or a duchy. In modern English, the standard form is ducal; duchal is a rare or archaic variant that appears mainly in older legal or literary sources. The word derives from the Latin dux, via Old French duc, with the general English suffix -al to form an adjective.
Usage notes indicate that ducal is overwhelmingly preferred in contemporary prose. Duchal may still be found
Ducal relates to the concept of a duchy, the territory ruled by a duke, and to the
See also: duchy, duke, ducal. These terms provide the related concepts of the noble title, the territory