regnatio

regnatio [ML < CL regnare+-tio] , (act or fact of) ruling or reigning, rule, reign (in quot. esp. w. ref. to period of time during which king is in power). b (transf.) dominance. 1219 post ~onis sue principium RL I 52; tyrannides ‥ dicuntur equivoce ~ones pretense Wycl. Civ. Dom. I 8; advenit ‥ Scociam magna cleri comitiva, regis Eugenii ~onis anno xj Fordun Chr. III 8 (= Bower III 8); prophetavit idem vir sanctus de capcione, liberacione, et ~one ejusdem Stephani usque ad mortem Otterb. 67; de residuo ~onis sui [sc. Ricardi regis] tempore Alexandri abbatis ‥ referetur Meaux I 288; anno ejusdem regis xliijo etatis sue et ~onis [sue] xxvijo Plusc. VII 11 (cf. Bower IX 55: regni sui).  b nimia ~o humorum complexionis preter solitum M. Scot Phys. 103.