tontine: an annuity scheme wherein participants share certain benefits and on the death of any participant his benefits are redistributed among the remaining participants; can run for a fixed period of time or until the death of all but one participant
annuity: income from capital investment paid in a series of regular payments
hypoxis: small plants that resemble amaryllis and that grow from a corm and bear flowers on a leafless stalk; sometimes classified as member of the family Amaryllidaceae: star grass