Source : Webster's Revised Unabridged Dictionary (1913)

Syllabary \Syl"la*ba*ry\, n.
   A table of syllables; more especially, a table of the
   indivisible syllabic symbols used in certain languages, as
   the Japanese and Cherokee, instead of letters. --S. W.
   Williams.

Source : WordNet®

syllabary
     n : a writing system whose characters represent syllables [syn:
         {syllabic script}]