ˌover-ˈweaken,v. [over- 27.] trans. To weaken too much, make too weak. 1747tr.Astruc's Fevers 308 Bleeding, when it is moderate..and not so plentiful as to over-weaken him.1880District Order, Pretoria 16 Dec., Never to endanger the safety of their posts through over-weakening their garrison.