Egersis

Egersis, in medical terminology, is an extreme state of alert wakefulness, often used in the context of insomnia. This Greek word is usually translated as a rousing up, a rising, and/or an excitation.

In Judeo-Christian theology it's a stand in for "Resurrection". The word "egersis" appears once in the Christian New Testament at Matthew 27:53. "Egeiro", a form of the same word meaning, appears a few times in the new testament. There has been some scholarly debate as to the exegetical interpretation of egersis with respect to the Christian resurrection.