tontine

noun

1. A form of investment in which, on the death of an investor, his share is divided amongst the other investors.

   “When Joseph Finsbury and his brother Masterman were little lads in white-frilled trousers, their father—a well-to-do merchant in Cheapside—caused them to join a small but rich tontine of seven-and-thirty lives.”

   “There were many speculative schemes which gambled on the expectation of an individual's life, as in the tontine system, whereby all the group's contributions went to the last survivor.”

   “They were pleasantly high, but in an almost self-conscious way, as if they were members of a tontine blessed by the unexpected death of two or three of its members.”