[knap] n [ME, fr. OE cnaep; akin to OE cnotta knot] (bef. 12c) 1 chiefly dial: a crest of a hill: summit
2. chiefly dial: a small hill
[2]knap vt knapped ; knap.ping [ME knappen, of imit. origin] (15c) 1 dial Brit:
[2]rap 1
2: to break with a quick blow; esp: to shape (as flints) by breaking off pieces 3 dial Brit: snap, crop
4. dial Brit: chatter -- knap.per n