The Collaborative International Dictionary of English v.0.48:

Berthing \Berth"ing\, n. (Naut.)
   The planking outside of a vessel, above the sheer strake.
   --Smyth.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Berth \Berth\, v. t. [imp. & p. p. Berthed; p. pr. & vb. n.
   Berthing.]
   1. To give an anchorage to, or a place to lie at; to place in
      a berth; as, she was berthed stem to stern with the
      Adelaide.
      [1913 Webster]

   2. To allot or furnish berths to, on shipboard; as, to berth
      a ship's company. --Totten.
      [1913 Webster]