sennight or se'nnight /senˈīt/ (archaic)

A week

• imperviability
• imperviable
• imperviableness
• imperviablenesses
• impervious
• imperviously
• imperviousness
• imperviousnesses
• impeticos
• impeticossed
• impeticosses
• impeticossing
• impetigines
• impetiginous
• impetigo
• impetigos
• impetrate
• impetrated
• impetrates
• impetrating
• impetration
• impetrations
• impetrative
• impetratory
• impetuosities