Source : Webster's Revised Unabridged Dictionary (1913)

Plane \Plane\, v. t. [imp. & p. p. {Planed}; p. pr. & vb. n.
   {Planing}.] [Cf. F. planer, L. planare, fr. planus. See
   {Plane}, a., {Plain}, a., and cf. {Planish}.]
   1. To make smooth; to level; to pare off the inequalities of
      the surface of, as of a board or other piece of wood, by
      the use of a plane; as, to plane a plank.

   2. To efface or remove.

            He planed away the names . . . written on his
            tables.                               --Chaucer.

   3. Figuratively, to make plain or smooth. [R.]

            What student came but that you planed her path.
                                                  --Tennyson.