Source : Webster's Revised Unabridged Dictionary (1913)

Tranship \Tran*ship"\, v. t.
   Same as {Transship}.

Source : WordNet®

transship
     v : transfer for further transportation from one ship or
         conveyance to another
     [also: {transshipping}, {transshipped}, {tranship}]

tranship
     See {transship}
     [also: {transhipping}, {transhipped}]