protopraesul Save DMLBS protopraesul [protos < πρῶτος+CL praesul] , first or foremost bishop (in quot. w. ref. to St. Dyfrig). a1563 (s512) contigit ut Dubricius, Landavensis ~ul sedis, ‥ archiepiscopus Urbi Legionum ad Isce fluenta ‥ designaretur (Bale) Conc. I 7a.