Bible Encyclopedias
Evocatio

Cyclopedia of Biblical, Theological and Ecclesiastical Literature

a religious ceremony observed by the ancient Romans when besieging a town, in which they solemnly called upon the deities of the place to forsake it and come over to their assistance. They usually attempted to bribe the gods by promising them temples and festivals.

Bibliography Information
McClintock, John. Strong, James. Entry for 'Evocatio'. Cyclopedia of Biblical, Theological and Ecclesiastical Literature. https://www.studylight.org/​encyclopedias/​eng/​tce/​e/evocatio.html. Harper & Brothers. New York. 1870.