Answer:

tontines

Answer	Crossword Clue
TONTINES	Last-man plans
TONTINES	Annuities.
TONTINES	Annuities shared by a group.

TONTINES	Benefit-sharing plans.
TONTINES	Annuity schemes
TONTINES	Survivor-take-all schemes

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.