noun / verb
buckle
BUHK-uhl/ˈbʌkl/
A clasp that secures a strap, or to fasten with one.
He buckles the leather belt.

Etymology
Latin buccula named a helmet’s cheek strap and later a shield’s boss. The term came to mean a metal fastening ring, giving the verb its sense of securing a belt or strap.
In context
the servant who used to carry me on Horseback would put a leather belt and buckle it about his waist
More examples
- The belt has a brass buckle.
- She buckled her helmet securely.
- The buckle snapped when he pulled too hard.
Forms
buckle · buckles · buckled · buckling
Similar words
- clasp
- The broader fastening device.
- fastener
- Anything holding parts together.