Where does “ladusvala” come from?

ladusvala (Swedish) comes from Swedish svala, from Old Norse svala, from Old Norse svalr, from Proto-Germanic swalaz, from Proto-Germanic swelaną, from Proto-Indo-European swel- — to smolder; burn; scorch; beam, board, frame,...

ladusvala (Swedish): barn swallow

Definitions

barn swallow

Ancestry of “ladusvala”, step by step

ladusvala traces back through two separate lines of ancestry.

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,...

via Swedish låda

Step	Language	Word	Meaning
1	Swedish	låda	box
2	Old Norse	hlaða	to load, to lade; to pile, to stack; to build...
3	Proto-Germanic	hlaþaną	to load
4	Proto-Indo-European	kleh₂-	to put; to lay out
5	Proto-Indo-European	kelh₂-	to beat; to break

Every word from Proto-Indo-European swel- →Every word from Proto-Germanic swelaną →Every word from Proto-Germanic swalaz →