?1761 J. Smeaton (1797) 21 To extra work in digging 3 lock-pits.
1802 1503 With a lockpit or entrance into the same from the said river Humber.
2008 M. C. Jurgenson 7 I listened to tales of his exploits..facing down desperadoes, or dabbing the rope and pulling fully loaded barges into the lock pits.