Where does “kjerneenergi” come from?

kjerneenergi (Norwegian Nynorsk) comes from Norwegian Nynorsk energi, from French énergie, from Latin energīa, from Ancient Greek ἐνέργεια, from Ancient Greek ἐνεργής, from Ancient Greek ἐνεργός, from Ancient Greek ἐν-, from Ancient Greek ἐν — Creates collective nouns, which refer to groups...

kjerneenergi (Norwegian Nynorsk): nuclear energy

Definitions

nuclear energy

Ancestry of “kjerneenergi”, step by step

kjerneenergi traces back through two separate lines of ancestry.

via Norwegian Nynorsk energi

Step	Language	Word	Meaning
1	Norwegian Nynorsk	energi	energy
2	French	énergie	energy; Energy
3	Latin	energīa	energy
4	Ancient Greek	ἐνέργεια	activity, operation, vigour; workmanship;...
5	Ancient Greek	ἐνεργής	active, effective
6	Ancient Greek	ἐνεργός	at work, active
7	Ancient Greek	ἐν-	in, within; on
8	Ancient Greek	ἐν	in, on, at; among; in, at, or during the time of
9	Ancient Greek	δέρμα	skin, hide
10	Ancient Greek	γλυφή	carving, carved work; hole cut
11	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
12	Proto-Indo-European	-íh₂	—
13	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

via Norwegian Nynorsk kjerne

Step	Language	Word	Meaning
1	Norwegian Nynorsk	kjerne	core, nucleus; essence
2	Old Norse	kjarni	kernel, core; core
3	Proto-Germanic	kernô	kernel, core
4	Proto-Indo-European	ǵr̥h₂nóm	grain
5	Proto-Indo-European	ǵr̥h₂nós	matured, grown old
6	Proto-Indo-European	ǵerh₂-	to grow old, to mature

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from Ancient Greek ἐν- →