Where does “contrafactuel” come from?

contrafactuel (French) comes from French contra-, from Latin contrā, from Latin ubī, from Latin cubī, from Proto-Italic *kʷuðei.

contrafactuel (French): counterfactual

Definitions

Step	Language	Word	Meaning
1	French	contra-	contra-
2	Latin	contrā	—
3	Latin	ubī	—
4	Latin	cubī	—
5	Proto-Italic	*kʷuðei	—

contrafactuel — Etymology, Origin & Word History | Etymology Explorer