gaffe or (rare) gaff /gaf/

A blunder

• depurate
• depurated
• depurates
• depurating
• depuration
• depurations
• depurative
• depuratives
• depurator
• depurators
• depuratory
• deputation
• deputations
• depute
• deputed
• deputes
• deputies
• deputing
• deputise
• deputised
• deputises
• deputising
• deputize
• deputized
• deputizes