Source : Webster's Revised Unabridged Dictionary (1913)

Dragoman \Drag"o*man\, n.; pl. {Dragomans}. [From F. dragoman,
   or Sp. dragoman, or It. dragomanno; all fr. LGr. ?, Ar.
   tarjum[=a]n, from the same source as E. targum. Cf.
   {Drogman}, {Truchman}.]
   An interpreter; -- so called in the Levant and other parts of
   the East.

Source : WordNet®

dragoman
     n : an interpreter and guide in the Near East; in the Ottoman
         Empire in the 18th and 19th centuries a translator of
         European languages for the Turkish and Arab authorities
         and most dragomans were Greek (many reached high
         positions in the government)