Proper noun
(the) Theotokos
(Christianity, chiefly Orthodoxy) Synonym of Mary, mother of Jesus, in particular reference to her role giving birth to God.
Synonyms: Deipara, Mother of God
Live quietly and peacefully, work with your hands, keep peace with all people, and in these God-pleasing deeds, sincerely pray for help from the Most Holy Theotokos. Luke (Voyno-Yasenetsky)
The Most Holy Theotokos is the greatest joy of all joys. Seraphim of Sarov
According to Eastern traditions, she retired to Ephesus with the Theotokos (Mary, the Mother of God ) and there she died. Source: Internet
Celestine found that the title Theotokos Eirini Artemi, Cyril of Alexandria's critique of the term THEOTOKOS by Nestorius Constantinople, Acta theol. Source: Internet
A more accurate translation of Theotokos into Latin would be Deipara or Dei Genetrix. Source: Internet
During the council, Nestorius defended his position by arguing there must be two persons of Christ, one human, the other divine, and Mary had given birth only to a human, hence could not be called the Theotokos, i.e. "the one who gives birth to God". Source: Internet