Where does “nackskinn” come from?

nackskinn (Swedish) comes from Swedish nacke, from Old Swedish nakke, from Old Norse hnakki, from Proto-Germanic hnakkô, from Proto-Indo-European knog-, from Proto-Indo-European ken- — to arise, begin.

nackskinn (Swedish): scruff; the loose skin at the back of the neck of some animals

Definitions

scruff; the loose skin at the back of the neck of some animals

Ancestry of “nackskinn”, step by step

nackskinn traces back through two separate lines of ancestry.

via Swedish nacke

Step	Language	Word	Meaning
1	Swedish	nacke	nape; the back of the neck; the back of the head
2	Old Swedish	nakke	nape, back of the neck
3	Old Norse	hnakki	nape of the neck
4	Proto-Germanic	hnakkô	the back of the neck; nape
5	Proto-Indo-European	knog-	back of the head, nape, neck
6	Proto-Indo-European	ken-	to arise, begin

via Swedish skinn

Step	Language	Word	Meaning
1	Swedish	skinn	skin; hide, fur; leather
2	Old Norse	skinn	animal hide
3	Proto-Germanic	skinþą	animal hide; fruit peel; skin
4	Proto-Indo-European	sken-	to split off
5	Proto-Indo-European	(s)ken-	to peel; to split off; peel

Every word from Proto-Indo-European ken- →Every word from Proto-Indo-European knog- →Every word from Proto-Germanic hnakkô →