Where does “rotselleri” come from?

rotselleri (Swedish) comes from Swedish rot, from Old Swedish rōt, from Old Norse rót, from Proto-Germanic wrōts, from Proto-Indo-European wréh₂ds — root.

rotselleri (Swedish): celeriac, celery root

Definitions

celeriac, celery root

Ancestry of “rotselleri”, step by step

rotselleri traces back through two separate lines of ancestry.

via Swedish rot

Step	Language	Word	Meaning
1	Swedish	rot	root; the part of a plant under the surface; the...
2	Old Swedish	rōt	root
3	Old Norse	rót	root
4	Proto-Germanic	wrōts	root
5	Proto-Indo-European	wréh₂ds	root

via Swedish selleri

Step	Language	Word	Meaning
1	Swedish	selleri	celery
2	Lombard	selleri	—
3	Latin	selīnum	—
4	Ancient Greek	σέλινον	celery

Every word from Proto-Indo-European wréh₂ds →Every word from Proto-Germanic wrōts →Every word from Old Norse rót →