G5605–ὠδίνω–ōdinō

My little children, of whom I am again in travail until Christ is formed in you--

ὠδίνω ōdinō “I travail”

For it is written, "Rejoice, you barren who don't bear. Break forth and shout, you that don't travail. For more are the children of the desolate than of her who has a husband."

ὠδίνουσα, ōdinousa “travailing,”

She was with child. She cried out in pain, laboring to give birth.

ὠδίνουσα ōdinousa “being in travail”