Where does “barnspråk” come from?

barnspråk (Swedish) comes from Swedish barn, from Old Swedish barn, from Old Norse barn, from Proto-Germanic barną, from Proto-Indo-European bʰēr- — shiny, light brown.

barnspråk (Swedish): childish language; varieties of language used by, or sometimes to, children

Definitions

childish language; varieties of language used by, or sometimes to, children

Ancestry of “barnspråk”, step by step

barnspråk traces back through two separate lines of ancestry.

via Swedish barn

Step	Language	Word	Meaning
1	Swedish	barn	a child; child, offspring; a descendant
2	Old Swedish	barn	child
3	Old Norse	barn	child
4	Proto-Germanic	barną	child
5	Proto-Indo-European	bʰēr-	shiny, light brown

via Swedish språk

Step	Language	Word	Meaning
1	Swedish	språk	language
2	Old Swedish	sprak	—
3	Middle Low German	sprāke	—
4	Old Saxon	sprāka	speech
5	Proto-West Germanic	*sprāku	speech, language

Every word from Proto-Indo-European bʰēr- →Every word from Proto-Germanic barną →Every word from Old Norse barn →