Ex*ec"u*to*ry (?), a. [LL. executorius, L. exsecutorius: cf.F. ex'ecutoire.]
1.
Pertaining to administration, or putting the laws in force; executive.
The official and executory duties of government.
Burke.
2. Law
Designed to be executed or carried into effect in time to come, or to take effect on a future contingency; as, an executory devise, reminder, or estate; an executory contract.
Blackstone.
© Webster 1913.