The Collaborative International Dictionary of English v.0.48:

Emblematize \Em*blem"a*tize\, v. t. [imp. & p. p.
   Emblematized; p. pr. & vb. n. Emblematizing.]
   To represent by, or as by, an emblem; to symbolize.
   [1913 Webster]

         Anciently the sun was commonly emblematized by a starry
         or radiate figure.                       --Bp. Hurd.
   [1913 Webster]