barret

noun3

1. •
   The flat cap worn by Roman Catholic ecclesiastics; a biretta.

   • The priestly leader wears the chasuble and stole, and often the pluvial besides; his head is covered with a barret. — 1889
2. •
   (historical) A kind of fitted cap worn by medieval soldiers.

   • Philip was dressed simply in black velvet, having a barret-cap of the same, with small chains of gold. — 1857
3. •
   (historical) A floppy beret-like cap worn by musketeers.

   • The Volunteer Jäger Detachments wore the Musketeer's uniform, often with a 'Barret' . This beret was a large floppy field cap, coloured black. — 1972