Obs. [f. KNACK v. + -ING1.] The action of the verb KNACK in various senses.
c. 1380. Wyclif, Wks. (1880), 9. Veyn songis and knackynge and harpynge.
c. 1388. in Wyclif’s Sel. Wks., III. 484. Þai wole no ferþer þen holy writte and olde seintus teche, for no newe knackynge of sotile cavellaciones.
1548. W. Patten, Exp. Scotl., in Arb., Garner, III. 71. Knakkynge of beadstones in every pew.
1607. Topsell, Serpents (1658), 633. A certain significant noise, made by knacking of the fingers.
1644. Bulwer, Chirol., 176. To compresse the middle-finger with the Thumbe by their complosion…. This knacking with the Fingers.
