decisor

decisor , settler, decider (of dispute); b (w. ref. to proctor). s1461 est sine lege necis vindex, sine judice juris / decisor, quia vi vult cuncta regi gladiali (Vers.) Reg. Whet. 1400.  b c1180 qui[a] ipse non potuit interesse, constituit quendam procuratorem, viz. V. de S., ~orem totius litis ‥, ratum habiturus quicquid V. inde finiret (Cart. Trentham) Collect. Staffs XI 323 (= FormA 22).