rochet

noun3

1. •
   A white vestment, worn by a bishop, similar to a surplice but with narrower sleeves, extending either to below the knee (in the Catholic church) or to the hem of the cassock in the Anglican church.

   • Each priest adorn'd was in a surplice white, / The bishops don'd their albes and copes of state, // Above their rochets button'd fair before, / And mitres on their heads like crowns they wore. — 1600
2. •
   (no longer used, historical) A frock or outer garment worn in the 13th and 14th centuries.
3. •
   (no longer used) The red gurnard.