The Collaborative International Dictionary of English v.0.48:

Syriasm \Syr"i*asm\, n.
   A Syrian idiom; a Syrianism; a Syriacism. --M. Stuart.
   [1913 Webster]

         The Scripture Greek is observed to be full of Syriasms
         and Hebraisms.                           --Bp.
                                                  Warburton.
   [1913 Webster]