noun: 1. Awakening or arousing. 2. The state of being awakened or aroused.
From Latin expergefacere (to awaken), from expergisci (to become awake) + facere (to make or do). Earliest documented use: 1639.
“It was as if the humans’ sudden reappearance was an expergefaction; their great destructive potential inspired the actions that the prophets had not deemed essential only a few short weeks before.” Ivan Henley;The Black Sword of Xorimahr; Writers Club Press; 2002.