fosse

noun2

1. •
   A ditch or moat.

   • Elberich endeavours to persuade her to become a Christian, and espouse Otnit; and to convince her of the incapacity of her gods, he tumbles their images into the fosse. — 1850
2. •
   A fosse or ditch.

   • The Major then went with me and Euphemia (Victoria staying at the inn) and showed us what is called the Ditch, being the fossé and ruinous banks of the old castle […] . — 1792