The Collaborative International Dictionary of English v.0.48:

Coasting \Coast"ing\, a.
   Sailing along or near a coast, or running between ports along
   a coast.
   [1913 Webster]

   Coasting trade, trade carried on by water between
      neighboring ports of the same country, as distinguished
      from foreign trade or trade involving long voyages.

   Coasting vessel, a vessel employed in coasting; a coaster.
      [1913 Webster]