imperil /im-perˈil/ (formal)

To endanger

imperˈilment noun

• air-kiss
• air-kissed
• air kisses
• air-kisses
• air-kissing
• air-lane
• air-lanes
• air layering
• airless
• airlessness
• airlessnesses
• air letter
• air letter form
• air letters
• air lieutenant
• air lieutenants
• airlift
• airlifted
• airlifting
• airlifts
• airline
• airliner
• airliners
• airlines
• air loadmaster