Lettered /(lĕt"tẽrd)/

Let·tered

Lettered

a.
  1. Literate; educated; versed in literature.
    The unlettered barbarians willingly accepted the aid of the lettered clergy, still chiefly of Roman birth, to reduce to writing the institutes of their forefathers.
  2. Of or pertaining to learning or literature; learned.
  3. Inscribed or stamped with letters.