The Collaborative International Dictionary of English v.0.48:

Gelt \Gelt\, n. [See 1st Geld.]
   Trubute, tax. [Obs.]
   [1913 Webster]

         All these the king granted unto them . . . free from
         all gelts and payments, in a most full and ample
         manner.                                  --Fuller.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gelt \Gelt\, n. [See Gelt, v. t.]
   A gelding. [Obs.] --Mortimer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gelt \Gelt\, n.
   Gilding; tinsel. [Obs.] --Spenser.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gelt
    n 1: informal terms for money [syn: boodle, bread,
         cabbage, clams, dinero, dough, gelt, kale,
         lettuce, lolly, lucre, loot, moolah, pelf,
         scratch, shekels, simoleons, sugar, wampum]