Origin of knurling
- a small ridge or bead, especially one of a series, as on a button for decoration or on the edge of a thumbscrew to assist in obtaining a firm grip.
- a knur.
- to make knurls or ridges on.
Origin of knurl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for knurling
Concave knurls are sometimes used for knurling rounded edges on screw heads, etc.
The two knurls are on opposite sides of the work so that the pressure of knurling is equalized.
Another machine puts the knurling around—forming the lubricating grooves, and another groove.
It is actually a knurling process, you can see the knurling marks.
- to impress with a series of fine ridges or serrations
- a small ridge, esp one of a series providing a rough surface that can be gripped
C17: probably from knur
Word Origin and History for knurling
"hard excrescence," c.1600, probably a diminutive of Middle English knor "knot" (c.1400), related to gnarl, from Proto-Germanic *knur- (cf. German knorren "a knotty excrescence"). Related: Knurly.
Online Etymology Dictionary, © 2010 Douglas Harper