- knurl (n.)
[knurl 词源字典]
- "hard excrescence," c. 1600, probably a diminutive of Middle English knor "knot" (c. 1400), related to gnarled, from Proto-Germanic *knur- (cognates: German knorren "a knotty excrescence"). Related: Knurly.[knurl etymology, knurl origin, 英语词源]