swarf
noun
ˈswȯrf 
: material (such as metallic particles and abrasive fragments) removed by a cutting or grinding tool
Example Sentences
Recent Examples on the Web The swarf is collected and cleaned, and then can be remelted. 
Willy Shih, Forbes, 10 July 2022
Willy Shih, Forbes, 10 July 2022 Word History
Etymology
probably from Middle English *swerf, from Old English geswearf, gesweorf; akin to Old English sweorfan to file away — more at swerve
First Known Use
1565, in the meaning defined above