Obs. rare1. [? f. TURN sb. or v. + SILVER sb.] A local payment of uncertain nature.
1578. in Whellan, Hist. Cumb. & Westm. (1860), 208/2. [From the inquisition taken in 1578, we learn the following particulars . The tenants of Ulterside pay yearly] for cornage, 4 s. 6 d.; for seawake, 7 d.; for turnsilver, 1 s. 3 d.