Proper noun
(the) Christotokos
(Christianity) Synonym of Mother of God, Mary, mother of Jesus, in her role as the mother of the Messiah, particularly in Greek contexts.
As a result of this duality, he proposed Christotokos (Bringer forth of Christ ) as a more suitable title for Mary. Source: Internet
Nestorius suggested the title Christotokos (Χριστοτόκος, "Christ-bearer"), but this proposal did not gain acceptance on either side. Source: Internet