Where does “sedvanlig” come from?

sedvanlig (Swedish) comes from Swedish sed, from Old Swedish siþer, from Old Norse siðr, from Proto-Germanic siduz, from Proto-Indo-European swedʰ- — custom, habit; wont, habit, custom.

sedvanlig (Swedish): traditional, usual, common, commonplace

Definitions

traditional, usual, common, commonplace

Ancestry of “sedvanlig”, step by step

sedvanlig traces back through two separate lines of ancestry.

via Swedish sed

Step	Language	Word	Meaning
1	Swedish	sed	a custom, a traditional habit
2	Old Swedish	siþer	custom, habit
3	Old Norse	siðr	a custom, a habit; a conduct, morality, religion
4	Proto-Germanic	siduz	custom, habit, practice; conduct
5	Proto-Indo-European	swedʰ-	custom, habit; wont, habit, custom

via Swedish vänlig

Step	Language	Word	Meaning
1	Swedish	vänlig	kind, nice, sweet
2	Old Norse	vanaligr	—

Every word from Proto-Indo-European swedʰ- →Every word from Proto-Germanic siduz →Every word from Old Norse siðr →