Source : Webster's Revised Unabridged Dictionary (1913)

Planch \Planch\, n. [F. planche.]
   A plank. [Obs.] --Ld. Berners.

Planch \Planch\, v. t. [imp. & p. p. {Planched}; p. pr. & vb. n.
   {Planching}.] [F. planche a board, plank. See {Plank}.]
   To make or cover with planks or boards; to plank. [Obs.] ``To
   that vineyard is a planched gate.'' --Shak.