Source : Webster's Revised Unabridged Dictionary (1913)

Three-piled \Three"-piled`\, a.
   1. Having the quality of three-pile; best; most costly. [R.]

            Thou art good velvet; thou 'rt three-piled piece.
                                                  --Shak.

   2. Fig.: Extravagant; exaggerated; high-flown. ``Three-piled
      hyperboles.'' --Shak.

   3. Accustomed to wearing three-pile; hence, of high rank, or
      wealth. [Obs.] ``Three-piled people.'' --Beau. & Fl.