αγγελοκρούω

Etymology
From.

Verb

 * 1)  to be knocking on heaven's door (literally: struck by the angel of death, hearing the knock of death)
 * 2)  to frighten / scare / terrify to death
 * 1)  to frighten / scare / terrify to death

Usage notes

 * Often described as a verb, because it is mostly used in the passive voice.