protecdicus

protecdicus [Byz. πρωτέκδικος < πρῶτος+ἔκδικος] , (eccl., as title of official in Eastern Orthodox Church) chief advocate. 1274 cum his ‥ qui clerum complent sanctissime ecclesie magne Dei, viz. magnus †conconomus [l. economus], †prothedicus [ed. Mansi, Sacrorum Conciliorum Nova et Amplissima Collectio XXIV (Florence, 1780) 75C: protecdicus], logotheta Flor. Hist. III 38.