† ministraˈtoriously,adv.Obs.rare—1. [f. late L. ministrātōri-us(see next) + -ous + -ly2.] In the capacity of an administrator. 1563–83Foxe A. & M. I. 432/1 A man cannot onely ministratoriously geue any temporal or continuall gift, eyther as well to his naturall sonne, as to his sonne by imitation.