Source : Webster's Revised Unabridged Dictionary (1913)

Hauberk \Hau"berk\, n. [OF. hauberc, halberc, F. haubert, OHG.
   halsberc; hals neck + bergan to protect, G. bergen; akin to
   AS. healsbeorg, Icel. h[=a]lsbj["o]rg. See {Collar}, and
   {Bury}, v. t.]
   A coat of mail; especially, the long coat of mail of the
   European Middle Ages, as contrasted with the habergeon, which
   is shorter and sometimes sleeveless. By old writers it is
   often used synonymously with habergeon. See {Habergeon}.
   [Written variously {hauberg}, {hauberque}, {hawberk}, etc.]
   --Chaucer.

         Helm, nor hawberk's twisted mail.        --Gray.

Source : WordNet®

hauberk
     n : a long (usually sleeveless) tunic of chain mail formerly
         worn as defensive armor [syn: {byrnie}]