v.
Function: transitive verb
Inflected Form: knapped ; knap · ping
Etymology: Middle English knappen, of imitative origin
Date: 15th century
1 dialect British : 2 RAP 1
2 : to break with a quick blow especially : to shape (as flints) by breaking off pieces
3 dialect British : SNAP , CROP
4 dialect British : CHATTER
– knap · per noun