pentise

The main entrance was originally in the west end of the hall, where part of the doorway still remains, and was probably covered by a pentise or porch with a door (still remaining) from the infirmary cloister, so that there was a continuous covered way from the farmery to the church. "

Bell's Cathedrals: The Cathedral Church of Gloucester [2nd ed.] A Description of Its Fabric and A Brief History of the Espicopal See