Where does “antioxytocic” come from?

antioxytocic (English) comes from English anti, from English anti-, from Ancient Greek ἀντι-, from Ancient Greek ᾰ̓ντῐ́ — opposite.

antioxytocic (English): Countering uterine contractions, thus delaying...

Definitions

antioxytocic traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	English	anti	Opposed to something; That has a torsion angle...
2	English	anti-	Against, hostile to; Contrasting with the norm;...
3	Ancient Greek	ἀντι-	anti-, against; like, reminiscent of
4	Ancient Greek	ᾰ̓ντῐ́	opposite

Step	Language	Word	Meaning
1	English	oxytocic	Serving to promote uterine contractions, thus...
2	Ancient Greek	ὠκυτόκος	—