Where does “sólarlag” come from?

sólarlag (Icelandic) comes from Icelandic lag, from Old Norse lág, from Old Norse leggja, from Proto-Germanic lagjaną, from Proto-Indo-European legʰ- — to lie.

sólarlag (Icelandic): sunset

Definitions

sunset

Ancestry of “sólarlag”, step by step

sólarlag traces back through two separate lines of ancestry.

via Icelandic lag

Step	Language	Word	Meaning
1	Icelandic	lag	layer; stratum; tune, song
2	Old Norse	lág	a felled tree; log; lying tree
3	Old Norse	leggja	to lay, place, put; to make, build
4	Proto-Germanic	lagjaną	to lay, to place in a resting position
5	Proto-Indo-European	legʰ-	to lie

via Icelandic sól

Step	Language	Word	Meaning
1	Icelandic	sól	the sun; sun
2	Old Norse	sól	sun
3	Proto-Germanic	*sōl	—

Every word from Proto-Indo-European legʰ- →Every word from Proto-Germanic lagjaną →Every word from Old Norse leggja →