Where does “stensvala” come from?

stensvala (Swedish) comes from Swedish Sten, from Old Swedish sten, from Old Norse Steinn, from Proto-Norse ᛊᛏᚨᛁᚾᚨᛉ, from Proto-Germanic stainaz, from Proto-Indo-European steyh₂-, from Proto-Indo-European steh₂- — to stand.

stensvala (Swedish): American cliff swallow, (Petrochelidon pyrrhonota)

Definitions

American cliff swallow, (Petrochelidon pyrrhonota)

Ancestry of “stensvala”, step by step

stensvala traces back through two separate lines of ancestry.

via Swedish Sten

Step	Language	Word	Meaning
1	Swedish	Sten	a stone; a rock
2	Old Swedish	sten	stone
3	Old Norse	Steinn	a stone, boulder, rock
4	Proto-Norse	ᛊᛏᚨᛁᚾᚨᛉ	stone
5	Proto-Germanic	stainaz	stone
6	Proto-Indo-European	steyh₂-	to stiffen
7	Proto-Indo-European	steh₂-	to stand

via Swedish svala

Step	Language	Word	Meaning
1	Swedish	svala	swallow
2	Old Norse	svala	a swallow; to chill, cool; strong feminine...
3	Old Norse	svalr	cool, cold
4	Proto-Germanic	swalaz	cold
5	Proto-Germanic	swelaną	to burn
6	Proto-Indo-European	swel-	to smolder; burn; scorch; beam, board, frame,...

Every word from Proto-Indo-European steh₂- →Every word from Proto-Indo-European steyh₂- →Every word from Proto-Germanic stainaz →