strop
/strɒp/Definitions
1. noun
A leather strap attached to a grindstone or similar rotating surface, used for sharpening tools or edges, typically by pulling the tool across it.
“He used a strop to sharpen the knife before the big dinner.”
2. verb
To sharpen or hone an edge by drawing it across a strop.
“The blacksmith stropped the blade to perfection.”