thoroughbrace means A leather strap supporting the body of a coach or wagon, attached to springs or serving as a spring itself. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From thorough + brace.
noun
- A leather strap supporting the body of a coach or wagon, attached to springs or serving as a spring itself.“Spring, tire, axle, and linchpin too,
Steel of the finest, bright and blue;
Thoroughbrace bison-skin, thick and wide;
Boot, top, dasher, from tough old hide
Found in the pit when the tanner died.”