knubble, nubble /nubˈl/ or knobble /nobˈl/

1. To beat with the fists
2. To knock

• lubricous
• lubricously
• lubritorium
• lubritoriums
• Lucan
• lucarne
• lucarnes
• luce
• lucencies
• lucency
• lucent
• lucern
• gerbils
• gere
• gerent
• gerents
• gerenuk
• gerenuks
• gerfalcon
• gerfalcons
• geriatric
• geriatrician
• geriatricians
• geriatrics
• geriatrist