Definition of lockspit in English:

lockspit

noun

  • A narrow trench dug to mark out a boundary or to indicate lines of work in construction or civil engineering projects.

verb

  • with object To mark out (a line or boundary) by digging a lockspit or trench.

Origin

Mid 17th century; earliest use found in Exemplification St Ives Law Sewers. Apparently from either lock or lock + spit<br>late 17th century. From lockspit.

Pronunciation

lockspit

/ˈlɒkspɪt/