invocatory
noun(in-vo-ca-tion)
the act or process of petitioning for help or support; specifically, often capitalized : a prayer of entreaty (as at the beginning of a service of worship)
invocatory
noun(in-vo-ca-tion)
a calling upon for authority or justification
invocatory
noun(in-vo-ca-tion)
a formula for conjuring : incantation