The Collaborative International Dictionary of English v.0.48:

Meld \Meld\, v. t. & i. [imp. & p. p. Melded; p. pr. & vb. n.
   Melding.] [G. melden to announce.] (Card Playing)
   In the game of pinochle, to declare or announce for a score;
   as, to meld a sequence. [WordNet sense 1]
   [Webster 1913 Suppl.]

   2. to mix together so that the components are
      indistinguishable. [WordNet sense 2]

   Syn: blend, mix, conflate, commingle, immix, fuse, coalesce,
        combine, merge.
        [WordNet 1.5]