Knap

Knap (?), n. [AS. cnæp, cnæpp, top, knob, button; cf. Icel. knappr knob, Sw. knapp, Dan. knap button, W., Gael., & Ir. cnap knob, button, and E. knop.] A protuberance; a swelling; a knob; a button; hence, rising ground; a summit. See Knob, and Knop.

The highest part and knap of the same island.
Holland.

Knap, v. t. [imp. & p. p. Knapped (?); p. pr. & vb. n. Knapping.] [D. knappen to chew, bite, crack, take hold of; prob. of imitative origin.] 1. To bite; to bite off; to break short. [Obs. or Prov. Eng. ]

He will knap the spears apieces with his teeth.
Dr. H. More.

He breaketh the bow, and knappeth the spear in sunder.
Ps. xlvi. 9 (Book of Common Prayer.)

2. To strike smartly; to rap; to snap. Bacon.

Knap, v. i. To make a sound of snapping. Wiseman.

Knap, n. A sharp blow or slap. Halliwell.