duffer¹ /dufˈər/

1. An unskilful or worthless person (informal)
2. A fogey, a useless old fellow (informal)
3. A counterfeit coin
4. An unproductive mine

• dob
• do battle
• dobbed
• dobber
• dobber-in
• dobbers
• dobbie
• dobbies
• dobbin
• dobbing
• dobbins
• dobby
• dobchick
• Doberman
• Dobermann
• Doberman pinscher
• Doberman pinschers
• dobhash
• dobhashes
• do bird
• dobra
• dobras
• Dobro
• do brown
• dobs