magisterial /ˌmadʒɪˈstɪəriəl 
/ ▸ adjective 1 having or showing great authority: a magisterial pronouncement.
▪ domineering; dictatorial: he dropped his somewhat magisterial style of questioning.
2 relating to a magistrate: magisterial districts.
▪ (of a person) holding the office of a magistrate: magisterial officers.
– DERIVATIVES magisterially /ˌmadʒɪˈstɪəriəli / adverb – ORIGIN early 17th century: from medieval Latin magisterialis, from late Latin magisterius, from Latin magister ‘master’.
EnglishOxford Dictionary of English
