Where does “trafikolycka” come from?

trafikolycka (Swedish) comes from Swedish trafik, from Italian traffico, from Vulgar Latin transfricare, from Latin fricō, from Latin frio, from Proto-Italic *friāō.

trafikolycka (Swedish): a traffic accident

Definitions

a traffic accident

Ancestry of “trafikolycka”, step by step

trafikolycka traces back through two separate lines of ancestry.

via Swedish trafik

Step	Language	Word	Meaning
1	Swedish	trafik	traffic
2	Italian	traffico	traffic; trade; activity, rush
3	Vulgar Latin	transfricare	to rub across
4	Latin	fricō	to rub
5	Latin	frio	I crumble, rub, or break into pieces
6	Proto-Italic	*friāō	—

via Swedish olycka

Step	Language	Word	Meaning
1	Swedish	olycka	accident; unhappiness, misery
2	Swedish	lycka	joy, happiness; a loop; a small farm field
3	Old Norse	lykja	to shut, to close
4	Proto-Germanic	lukjaną	to close, shut
5	Proto-Indo-European	lewǵ-	to break, tear; to break, shatter

Every word from Proto-Italic *friāō →Every word from Latin frio →Every word from Latin fricō →