† omnipoˈtentiary,a.Obs.rare—1. [f. L. omnipotentia omnipotence + -ary.] Of, belonging to, or involving omnipotence; omnipotent. 1659D. Pell Impr. Sea 521 That the cessation of..Tempests, is by, through, and from an..uncontroulable omnipotentiary power that is in God.