The theological dispute over the term concerned the term Θεός "God" vs. Χριστός "Christ", and not τόκος ("genetrix", "bearer") vs. μήτηρ ("mater", "mother"), and the two terms have been used as synonyms throughout Christian tradition. Both terms are known to have existed alongside one another since the early church, but it has been argued, even in modern times, that the term "Mother of God" is unduly suggestive of Godhead having its origin in Mary, imparting to Mary the role of a Mother Goddess. But this is an exact reiteration of the objection by Nestorius, resolved in the 5th century, to the effect that the term "Mother" expresses exactly the relation of Mary to the incarnate Son ascribed to Mary in Christian theology.