The Collaborative International Dictionary of English v.0.48:

Multure \Mul"ture\, n. [OF. multure, moulture, F. mouture, fr.
   L. molitura a grinding, molere to grind. See Mill the
   machine.]
   1. (Scots Law) The toll for grinding grain. --Erskine.
      [1913 Webster]

   2. A grist or grinding; the grain ground.
      [1913 Webster]