malapropism /malˈə-pro-pi-zm/

1. The misapplication of words without mispronunciation, from Mrs Malaprop in Sheridan's play, The Rivals, who uses words malapropos
2. A word so used

• swifter
• swifters
• swiftest
• swift-foot
• swift-footed
• swift fox
• swift foxes
• Swiftian
• swifting
• swiftlet
• swiftlets
• swiftly
• swiftness
• swiftnesses
• swifts
• swift-winged
• swig
• swigged
• swigger
• swiggers
• swigging
• swigs
• swill
• swilled
• swiller