perpetuity /pûr-pi-tūˈi-ti/

1. The state of being perpetual
2. Endless time
3. Duration for an indefinite period
4. Something lasting for ever
5. The sum paid for a perpetual annuity
6. The annuity itself
7. An arrangement whereby property is tied up, or rendered inalienable, for all time or for a very long time

• underbushes
• underbuy
• underbuying
• underbuys
• under canvas
• undercapitalisation
• undercapitalised
• undercapitalization
• undercapitalized
• undercard
• undercards
• undercarriage
• undercarriages
• undercart
• undercarts
• undercast
• undercasts
• undercharge
• undercharged
• undercharges
• undercharging
• underclad
• underclass
• underclasses
• underclassman