jor-JAY-nah (English) [key] submitted by Catalina-lirio, with the note: An occasionally heard English pronunciation which developed from the aristocratic Cavendish family's drawling accent. The Cavendish (Duke of Devonshire's) family was one of the most influential and popular of London society in the eighteenth century. This is according to the biography "Georgiana, Duchess of Devonshire", by Amanda Foreman (Harper Collins, 2000).