A species of estate tail which arises where one is tenant in special tail, and a person from whose body the issue was to spring dies without issue, or, having left issue, that issue becomes extinct. either of these cases the surviving tenant in special tail becomes "tenant in tail after pos- sibility of issue extinct." 2 Bl. Comm. 124. In TAIL, ESTATE IN. An estate of inheritance, which, instead of descending to heirs generally, goes to the heirs of the donee's body, which means his lawful issue, his children, and through them to his grand- children in a direct line, so long as his pos- terity endures in a regular order and course of descent, and upon the death of the first owner without issue, the estate determines. 1 Washb. Real Prop. *72. The An estate tail is a freehold of inheritance, limited to a person and the heirs of his body, general or special, male or female, and is the creature of the statute de Donis. estate, provided the entail be not barred, reverts to the donor or reversioner, if the donee die without leaving descendants Rent reserved upon a answering to the condition annexed to the estate upon its creation, unless there be a TACK, n. In Scotch law. A term cor- responding to the English "lease," and de- noting the same species of contract.