flummox /flumˈəks/ (informal)

To perplex or puzzle

• cobwebbed
• cobwebberies
• cobwebbery
• cobwebbier
• cobwebbiest
• cobwebbing
• cobwebby
• cobwebs
• cobza
• cobzas
• coca
• Coca-Cola
• coca-colonisation
• coca-colonization
• Cocagne
• Cocaigne
• cocaine
• cocaines
• cocainisation
• cocainisations
• cocainise
• cocainised
• cocainises
• cocainising
• cocainism