relator

from The Collaborative International Dictionary of English v.0.48

Relator \Re*lat"or\ (r?-l?t"?r), n. [ L.: cf. F. relateur. See
   {Relate}.]
   1. One who relates; a relater. "The several relators of this
      history." --Fuller.
      [1913 Webster]

   2. (Law) A private person at whose relation, or in whose
      behalf, the attorney-general allows an information in the
      nature of a quo warranto to be filed.
      [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

RELATOR. A rehearser or teller; one who, by leave of court, brings an 
information in the nature of a quo warranto. 
     2. At common law, strictly speaking, no such person as a relator to an 
information is known; he being a creature of the statute 9 Anne, c. 20. 
     3. In this country, even where no statute similar to that of Anne 
prevails, informations are allowed to be filed by private persons desirous 
to try their rights, in the name of the attorney general, and these are 
commonly called relators; though no judgment for costs can be rendered for 
or against them. 2 Dall. 112; 5 Mass. 231; 15 Serg. & Rawle, 127; 3 Serg. & 
Rawle, 52; Ang. on Corp. 470. In chancery the relator is responsible for 
costs. 4 Bouv. Inst. n. 4022.

from Moby Thesaurus II by Grady Ward, 1.0

24 Moby Thesaurus words for "relator":
      anecdotist, fableist, fabler, fabulist, fictionist, mythmaker,
      mythopoet, narrator, novelettist, novelist, raconteur, reciter,
      recounter, romancer, romancist, sagaman, short-story writer,
      spinner of yarns, storier, storyteller, taleteller,
      teller of tales, word painter, yarn spinner