flummox /flumˈəks/ (informal)

To perplex or puzzle

• pre-echoes
• pre-eclampsia
• preed
• preeing
• pre-elect
• pre-elected
• pre-electing
• pre-election
• pre-elections
• pre-elects
• pre-embryo
• pre-embryonic
• pre-embryos
• preemie
• preemies
• pre-eminence
• pre-eminent
• pre-eminently
• pre-emphasis
• pre-employ
• pre-employed
• pre-employing
• pre-employs
• pre-empt
• pre-empted