† proto-justiciaryshipn. [compare post-classical Latin protojustitiarius chief justice (c1250 in a British source)] Obsolete
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1611 J. SpeedHist. Great Brit.ix. ix. 517/1 The Earle of Kent, whom..the King remoued from the Proto-Iustitiariship (or high office of his Chiefe Iustice).