Where does “svartand” come from?

svartand (Swedish) comes from Swedish svart, from Old Swedish svarter, from Old Norse svartr, from Proto-Germanic swartaz, from Proto-Indo-European swordo- — dirty, dark, black.

svartand (Swedish): an American black duck, Anas rubripes

Definitions

an American black duck, Anas rubripes

Ancestry of “svartand”, step by step

svartand traces back through two separate lines of ancestry.

via Swedish svart

Step	Language	Word	Meaning
1	Swedish	svart	black; illegal; in avoidance of taxes
2	Old Swedish	svarter	black
3	Old Norse	svartr	black
4	Proto-Germanic	swartaz	black
5	Proto-Indo-European	swordo-	dirty, dark, black

via Swedish and

Step	Language	Word	Meaning
1	Swedish	and	a wild duck
2	Old Norse	ǫnd	duck; breath; soul
3	Proto-Germanic	anadô	breath; spirit; zeal
4	Proto-Indo-European	h₂enh₁‑	to breathe

Every word from Proto-Indo-European swordo- →Every word from Proto-Germanic swartaz →Every word from Old Norse svartr →