Where does “lämpölasi” come from?

lämpölasi (Finnish) comes from Finnish lasi, from Swedish glas, from Old Swedish glas, from Middle Low German glas, from Old Saxon glas, from Proto-West Germanic glas, from Proto-Germanic glasą, from Proto-Indo-European ǵʰel- — to shine, glimmer, glow; to shimmer, gleam;...

lämpölasi (Finnish): insulating glass

Definitions

insulating glass

Ancestry of “lämpölasi”, step by step

lämpölasi traces back through two separate lines of ancestry.

via Finnish lasi

Step	Language	Word	Meaning
1	Finnish	lasi	glass; bells; ice
2	Swedish	glas	glass
3	Old Swedish	glas	—
4	Middle Low German	glas	glass
5	Old Saxon	glas	glass
6	Proto-West Germanic	glas	glass
7	Proto-Germanic	glasą	glass
8	Proto-Indo-European	ǵʰel-	to shine, glimmer, glow; to shimmer, gleam;...

via Finnish lämpö

Step	Language	Word	Meaning
1	Finnish	lämpö	warmth, heat; heat; fever
2	Finnish	-o	Forms result or action nouns from verbs; Forms...
3	Proto-Finnic	-o	Forms action/result nouns from verbs
4	Proto-Uralic	-w	—

Every word from Proto-Indo-European ǵʰel- →Every word from Proto-Germanic glasą →Every word from Proto-West Germanic glas →