and see rule A wait and see approach time-fetters litigants seeking to void a trust on the grounds of a potential, later or residuary use invalidity, due to alleged perpetuity. Under this, the court may decide validity of future estates only once the prior estate has vested in another/ended and then tests whether the interest violates the rule by the events which have actually happened rather than adjudicating on all the possibilities drawn up. Cy-près rule Cy-près doctrine was also instituted to mitigate the harshness of the common law rule against perpetuities. Cy-près means "as near as possible" or "as close as possible". Cy-près allows the court to reform the interest within the limits of the rule to approximate most closely the intention of the creator of the interest. Both wait-and-see and cy-près approaches have been adopted by the American Law Institute as to the traditional rule against perpetuities. See also Trust law References Citations Sources Legal terminology