overplus

overplus
    n 1: extreme excess; "an embarrassment of riches" [syn:
         {overplus}, {plethora}, {superfluity}, {embarrassment}]
    

Overplus \O"ver*plus\, n. [Over + L. plus more. See {Plus}, and
   cf. {Surplus}.]
   That which remains after a supply, or beyond a quantity
   proposed; surplus. --Shak.
   [1913 Webster] "The overplus of a great fortune." --Addison.
   [1913 Webster]
    

OVERPLUS. What is left beyond a certain amount; the residue, the remainder 
of a thing. The same as Surplus. (q.v.) 
     2. The overplus may be certain or uncertain. It is certain, for 
example, when an estate is worth three thousand dollars, and the owner 
asserts it to be so in his will, and devises of the proceeds one thousand 
dollars to A, one thousand dollars to B, and the overplus to C, and in 
consequence of the deterioration of the estate, or from some other cause, it 
sells for less than three thousand dollars, each of the legatees A, B and C 
shall take one third: the overplus is uncertain where, for example, a 
testator does not know the value of his estate, and gives various legacies 
and the overplus to another legatee; the latter will be entitled only to 
what may be left. 18 Ves. 466. See Residue; Surplus. 
    

31 Moby Thesaurus words for "overplus":
      balance, bonus, dividend, excess, extra, gratuity, lagniappe,
      leftover, margin, overabundance, overage, overflow, overkill,
      overmeasure, overmuch, overrun, overset, overstock, oversupply,
      plethora, plus, pourboire, redundancy, remainder, something extra,
      spare, superfluity, surfeit, surplus, surplusage, tip