Source : Webster's Revised Unabridged Dictionary (1913)

Sanbenito \San`be*ni"to\, n. [Sp. & Pg. sambenito, contr. from
   L. saccus sack + benedictus blessed.]
   1. Anciently, a sackcloth coat worn by penitents on being
      reconciled to the church.

   2. A garnment or cap, or sometimes both, painted with flames,
      figures, etc., and worn by persons who had been examined
      by the Inquisition and were brought forth for punishment
      at the auto-da-f['e].