What does "locktender" mean?

A tender of a lock on a waterway (e.g., canal or river).

Locktender

noun

noun ·Rare ·Advanced level

Noun

1
A tender of a lock on a waterway (e.g., canal or river).
"Near-synonyms: lockkeeper, lockman, lockmaster"

"Near-synonyms: lockkeeper, lockman, lockmaster"