ἀγρυπνία

Etymology
From.

Noun

 * 1) sleeplessness, watchfulness
 * 2) a time of watching
 * 1) a time of watching
 * 1) a time of watching
 * 1) a time of watching
 * 1) a time of watching
 * 1) a time of watching
 * 1) a time of watching