Planishing

from The Collaborative International Dictionary of English v.0.48

Planish \Plan"ish\, v. t. [imp. & p. p. {Planished}; p. pr. &
   vb. n. {Planishing}.] [OF. planir, F. planer. See {Plane},
   v., and {-ish}.]
   To make smooth or plane, as a metallic surface; to condense,
   toughen, and polish by light blows with a hammer.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Planishing \Plan"ish*ing\,
   a. & vb. n. from {Planish}, v. t.
   [1913 Webster]

   {Planishing rolls} (Coining), rolls between which metal
      strips are passed while cold, to bring them to exactly the
      required thickness.
      [1913 Webster]

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