Abeyance

Abeyance (from the Old French abeance meaning "gaping") is a state of expectancy in respect of property, titles or office, when the right to them is not vested in any one person, but awaits the appearance or determination of the true owner. In law, the term abeyance can only be applied to such future estates as have not yet vested or possibly may not vest. For example, an estate is granted to A for life, with remainder to the heir of B. During B's lifetime, the remainder is in abeyance, for until the death of B it is uncertain who is B's heir. Similarly the freehold of a benefice, on the death of the incumbent, is said to be in abeyance until the next incumbent takes possession.

The term hold in abeyance is used in lawsuits and court cases when a case is temporarily put on hold.

The most common use of the term is in the case of English peerage dignities. Most such peerages pass to heirs-male, but the ancient baronies created by writ, as well as some very old earldoms, pass instead to heirs-general (by cognatic primogeniture). In this system, sons are preferred from eldest to youngest, the heirs of a son over the next son, and any son over daughters, but there is no preference among daughters: they or their heirs inherit equally.

If the daughter is an only child or her sisters are deceased and have no living issue, she (or her heir) is vested with the title; otherwise, since a peerage cannot be shared nor divided, the dignity goes into abeyance between the sisters or their heirs, and is held by no one. If through lack of issue, marriage, or both, eventually only one person represents the claims of all the sisters, he or she can claim the dignity as a matter of right, and the abeyance is said to be terminated. On the other hand, the number of prospective heirs can grow quite large, since each share potentially can be divided between daughters, where the owner of a share dies without leaving a son.

...
Wikipedia