The pre-Christian Hippocratic oath pledges against both euthanasia and abortion. Even the pagan Greeks understood evil when they saw it.
As the modern apologists for abortion say, the Hippocratic Oath, in the form it USED to be taken by doctors, was interpreted in terms of Christian morality. We tend to see all the Greek thought through a Judeo-Christian lens. The abortion law we live with today is a radical “other,” and is based solely on the absolute power of the mother. It is, ironically, the reverse image of the old Rom,an law which gave the Pater familias life and death authority over his children. If after a child was born, the child was chosen or rejected by the father. If he refused to pick it up, the baby would be thrown out with the trash and probably eaten by dogs.