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

• hypermedias
• hypermetrical
• hypermetropia
• hypermetropias
• hypermetropic
• hypermnesia
• life-estates
• life expectancies
• life expectancy
• life-force
• life-forces
• lifeful
• life-giving
• lifeguard
• lifeguards
• Life Guards
• life histories
• life history
• lifehold
• life instinct
• life insurance
• life-interest
• life-interests
• life in the fast lane
• life jacket