In the Eastern Christian Churches, Orthros (Greek (ὄρθρος, meaning `early dawn` or `daybreak`) or Oútrenya (Slavonic Оўтреня) is the last of the four night offices, which also include Vespers, Compline, and Midnight Office. In traditional monasteries it is celebrated daily so as to end at sunrise. In parishes it is normally serv... Found on http://en.wikipedia.org/wiki/Orthros