exord

Etymology

From Latin exordium.

exord means A preface or prefatory passage. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

noun

A preface or prefatory passage.“One peculiarity of Bello is his having first broken through the custom of religious invocations at the heads of his cantos, in place of which he substituted poetical exords, or reflections on the events of his narrative, or on circumstances connected with them.”
An execute order: an order to implement a specified plan.