perpetuities

noun pl. perpetuities

1. the state or quality of being perpetual
2. something perpetual, as an annuity or pension to be paid indefinitely or, often specif., for life
3. unlimited time; eternity
4. Law
   1. a limitation upon the transference of an estate: it is valid only for a legally specified period
   2. an estate so limited

Origin: ME perpetuite < OFr perpetuité < L perpetuitas