Where does “harfang” come from?

harfang (French) comes from Swedish harfång, from Swedish hare, from Old Swedish hari, from Old Norse hari, from Germanic *hesô.

harfang (French): snowy owl

Definitions

Step	Language	Word	Meaning
1	Swedish	harfång	snowy owl
2	Swedish	hare	hare
3	Old Swedish	hari	hare
4	Old Norse	hari	—
5	Germanic	*hesô	—

harfang — Etymology, Origin & Word History | Etymology Explorer