The Collaborative International Dictionary of English v.0.48:

Damaskeen \Dam"as*keen`\, Damasken \Dam"as*ken\, v. t. [F.
   damaschinare. See Damascene, v.]
   To decorate, as iron, steel, etc., with a peculiar marking or
   "water" produced in the process of manufacture, or with
   designs produced by inlaying or incrusting with another
   metal, as silver or gold, or by etching, etc., to damask.
   [1913 Webster]

         Damaskeening is is partly mosaic work, partly
         engraving, and partly carving.           --Ure.
   [1913 Webster]