baronian,a.|bəˈrəʊnɪən| [f. barony + -ian.] = baronial a. 1656Prynne Fund. Rights of Eng. Freemen 31 The particulars whereof would amount to many Baronian Tomes, if at large recorded.1905Daily Chron. 14 June 4/7 The castle is built of granite, in the Scotch Baronian style.