n. An old name for the finest and most costly kind of velvet, having a fine, thick pile. [ 1913 Webster ]

I have served Prince Florizel and in my time wore three-pile. Shak. [ 1913 Webster ]

a. 1. Having the quality of three-pile; best; most costly. [ R. ] [ 1913 Webster ]

Thou art good velvet; thou 'rt three-piled piece. Shak. [ 1913 Webster ]

2. Fig.: Extravagant; exaggerated; high-flown. “Three-piled hyperboles.” Shak. [ 1913 Webster ]

3. Accustomed to wearing three-pile; hence, of high rank, or wealth. [ Obs. ] “Three-piled people.” Beau. & Fl. [ 1913 Webster ]