Where does “skifertak” come from?

skifertak (Norwegian Bokmål) comes from Norwegian Bokmål tak, from Old Norse tak, from Old Norse taka, from Proto-Germanic tēkaną, from Proto-Indo-European deh₁g- — to touch.

skifertak (Norwegian Bokmål): a slate roof

Definitions

a slate roof

Ancestry of “skifertak”, step by step

skifertak traces back through two separate lines of ancestry.

via Norwegian Bokmål tak

Step	Language	Word	Meaning
1	Norwegian Bokmål	tak	A roof; ceiling; grip
2	Old Norse	tak	grip, hold
3	Old Norse	taka	to take; taking, capture; taking, seizing
4	Proto-Germanic	tēkaną	to touch; to grasp
5	Proto-Indo-European	deh₁g-	to touch

via Norwegian Bokmål skifer

Step	Language	Word	Meaning
1	Norwegian Bokmål	skifer	schist, shale, slate
2	German	Schiefer	shale, slate; small splinter
3	Middle High German	schiver	—
4	Old High German	skivaro	—

Every word from Proto-Indo-European deh₁g- →Every word from Proto-Germanic tēkaną →Every word from Old Norse taka →