Source : Webster's Revised Unabridged Dictionary (1913)

Alloy \Al*loy"\, v. t. [imp. & p. p. {Alloyed}; p. pr. & vb. n.
   {Alloying}.] [F. aloyer, OF. alier, allier, later allayer,
   fr. L. aligare. See {Alloy}, n., {Ally}, v. t., and cf.
   {Allay}.]
   1. To reduce the purity of by mixing with a less valuable
      substance; as, to alloy gold with silver or copper, or
      silver with copper.

   2. To mix, as metals, so as to form a compound.

   3. To abate, impair, or debase by mixture; to allay; as, to
      alloy pleasure with misfortunes.