stumer /stūˈmər/ (slang)

1. A counterfeit coin or note
2. A forged or worthless cheque
3. A sham
4. A dud
5. A failure, bankruptcy
6. A horse sure to lose
7. A stupid mistake, clanger
8. A stupid person (Scot)

• numinousness
• numinousnesses
• numismatic
• numismatically
• numismatics
• numismatist
• numismatists
• numismatologist
• numismatologists
• numismatology
• nummary
• nummular
• nummulary
• nummulated
• nummulation
• nummulations
• nummuline
• nummulite
• nummulites
• nummulitic
• numnah
• numnahs
• numpties
• numpty
• numskull