knubble, nubble /nubˈl/ or knobble /nobˈl/

1. To beat with the fists
2. To knock

• costermongers
• costers
• costes
• cost-free
• costing
• costive
• costively
• costiveness
• costivenesses
• costlier
• costliest
• costliness
• costlinesses
• costly
• costmaries
• costmary
• cost of living
• cost of living index
• cost plus
• cost-plus
• cost price
• cost push
• cost-push inflation
• costrel
• costrels