knap

knap  (np)

tr.v. knapped, knap·ping, knaps

1. To break or chip (stone) with sharp blows, as in shaping flint or obsidian into tools.

2. Chiefly British

a. To strike sharply; rap.

b. To snap at or bite.

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[Middle English knappen, probably of imitative origin.]

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knapper n.

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knap¹

n

(Earth Sciences / Physical Geography) Dialect the crest of a hill

[Old English cnæpp top; compare Old Norse knappr knob]

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knap²

vb knaps, knapping, knapped

(tr) Dialect to hit, hammer, or chip

[C15 (in the sense: to strike with a sharp sound): of imitative origin; compare Dutch knappen to crack]

knapper  n

Thesaurus

Verb	1.	knap - strike sharply; "rap him on the knuckles" rap strike - deliver a sharp blow, as with the hand, fist, or weapon; "The teacher struck the child"; "the opponent refused to strike"; "The boxer struck the attacker dead" knock - rap with the knuckles; "knock on the door"
	2.	knap - break a small piece off from; "chip the glass"; "chip a tooth" break off, chip, cut off cut - separate with or as if with an instrument; "Cut the rope"