Where does “y avoir” come from?

y avoir (French) comes from Middle French y avoir, from Old French i avoir, from Latin habēre.

y avoir (French): there be

Definitions

Step	Language	Word	Meaning
1	Middle French	y avoir	there be
2	Old French	i avoir	there be
3	Latin	habēre	—

y avoir — Etymology, Origin & Word History | Etymology Explorer