'Lockage' definitions:

Definition of 'lockage'

(from WordNet)
noun
A fee charged for passage through a lock in a canal or waterway
noun
A system of locks in a canal or waterway
noun
Passage through a lock in a canal or waterway

Definition of 'Lockage'

From: GCIDE
  • Lockage \Lock"age\, n.
  • 1. Materials for locks in a canal, or the works forming a lock or locks. [1913 Webster]
  • 2. Toll paid for passing the locks of a canal. [1913 Webster]
  • 3. Amount of elevation and descent made by the locks of a canal. [1913 Webster]
  • The entire lock will be about fifty feet. --De Witt Clinton. [1913 Webster]