G5605–ὠδίνω–ōdinō

my children, of whom I again travail in birth until Christ shall have been formed in you:

ὠδίνω ōdinō “I travail”

For it is written, Rejoice, thou barren that bearest not; break out and cry, thou that travailest not; because the children of the desolate are more numerous than [supplied: those] of her that has a husband.

ὠδίνουσα, ōdinousa “travailing,”

and being with child she cried, [supplied: being] in travail, and in pain to bring forth.

ὠδίνουσα ōdinousa “being in travail”