Where does “simhud” come from?

simhud (Swedish) comes from Swedish hud, from Old Swedish huþ, from Old Norse húð, from Proto-Germanic hūdiz, from Proto-Indo-European (s)kewH- — to cover, bedeck; cover.

simhud (Swedish): webbing, web (interdigital webbing)

Definitions

webbing, web (interdigital webbing)

Ancestry of “simhud”, step by step

simhud traces back through two separate lines of ancestry.

via Swedish hud

Step	Language	Word	Meaning
1	Swedish	hud	skin
2	Old Swedish	huþ	skin; hide
3	Old Norse	húð	skin
4	Proto-Germanic	hūdiz	hide, skin
5	Proto-Indo-European	(s)kewH-	to cover, bedeck; cover

via Swedish simma

Step	Language	Word	Meaning
1	Swedish	simma	to swim; to take a bath, to bathe
2	Old Norse	svimma	to swim
3	Proto-Germanic	swimmaną	to be unsteady; to swim; float
4	Proto-Indo-European	swem(bʰ)-	to bend, turn, swing; to be unsteady, move, swim

Every word from Proto-Indo-European (s)kewH- →