The Collaborative International Dictionary of English v.0.48:

Disembark \Dis`em*bark"\, v. t. [imp. & p. p. Disembarked; p.
   pr. & vb. n. Disembarking.] [Pref. dis- + embark: cf. F.
   d['e]sembarquer.]
   To remove from on board a vessel; to put on shore; to land;
   to debark; as, the general disembarked the troops.
   [1913 Webster]

         Go to the bay, and disembark my coffers. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Disembark \Dis`em*bark"\, v. i.
   To go ashore out of a ship or boat; to leave a ship; to
   debark.
   [1913 Webster]

         And, making fast their moorings, disembarked. --Cowper.
   [1913 Webster]

WordNet (r) 3.0 (2006):

disembark
    v 1: go ashore; "The passengers disembarked at Southampton"
         [syn: disembark, debark, set down] [ant: embark,
         ship]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "disembark":
   alight, anchor, cast anchor, come to anchor, come to land, debark,
   debus, deplane, detrain, disemplane, dock, drop anchor,
   drop the hook, go ashore, kedge, kedge off, land, lash,
   lash and tie, lay anchor, leave, make a landfall, make land,
   make port, moor, put in, put into port, reach land, tie up,
   unboat