A person who makes, repairs, or fits harnesses; a craftsperson specializing in harness work.
From harness (from Old French harneis, meaning equipment or armor, from Scandinavian origins) plus -er (agent suffix). The -er suffix indicates someone who practices or specializes in an activity.
Harness-making was once a significant trade—harnesses were complex, custom-fit pieces of equipment that could mean the difference between a horse being comfortable and injured—so harnessers were skilled craftspeople, and their craft has almost disappeared with automobiles.
Complete word intelligence in one call. Free tier — 50 lookups/day.