Where does “lättmetallegering” come from?

lättmetallegering (Swedish) comes from Swedish lättmetall, from Swedish lätt, from Old Swedish lætter, from Old Norse léttr, from Proto-Germanic linhtaz, from Proto-Indo-European h₁lengʷʰ- — light.

lättmetallegering (Swedish): a light-metal alloy

Definitions

a light-metal alloy

Ancestry of “lättmetallegering”, step by step

lättmetallegering traces back through two separate lines of ancestry.

via Swedish lättmetall

Step	Language	Word	Meaning
1	Swedish	lättmetall	a light metal
2	Swedish	lätt	light; of low weight; light, lean, low-fat;...
3	Old Swedish	lætter	light; easy; easily disrupted
4	Old Norse	léttr	light; easy
5	Proto-Germanic	linhtaz	light
6	Proto-Indo-European	h₁lengʷʰ-	light

via Swedish legering

Step	Language	Word	Meaning
1	Swedish	legering	alloy
2	Swedish	legera	to alloy
3	German	legieren	To alloy; To thicken
4	Italian	legare	to bind or tie; to unite; to connect
5	Latin	ligō	hoe, mattock
6	Proto-Indo-European	leyǵ-	to bind, tie

Every word from Proto-Indo-European h₁lengʷʰ- →Every word from Proto-Germanic linhtaz →Every word from Old Norse léttr →