flummox /flumˈəks/ (informal)

To perplex or puzzle

• disorganised
• disorganises
• disorganising
• disorganization
• disorganize
• disorganized
• disorganizes
• disorganizing
• disorient
• disorientate
• disorientated
• disorientates
• disorientating
• disorientation
• disorientations
• disoriented
• disorienting
• disorients
• disown
• disowned
• disowner
• disowners
• disowning
• disownment
• disownments