Where does “hiberner” come from?

hiberner (French) comes from Latin hībernō, from Latin hībernus, from Proto-Indo-European ǵʰey- — winter.

hiberner (French): to hibernate

Definitions

Step	Language	Word	Meaning
1	Latin	hībernō	—
2	Latin	hībernus	—
3	Proto-Indo-European	ǵʰey-	winter

hiberner — Etymology, Origin & Word History | Etymology Explorer