Where does “selfenergy” come from?

selfenergy (English) comes from English energy, from Middle French énergie, from Late Latin energia, 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...

selfenergy (English): The contribution to a particle's mass or...

Definitions

The contribution to a particle's mass or...

Ancestry of “selfenergy”, step by step

selfenergy traces back through two separate lines of ancestry.

via English energy

Step	Language	Word	Meaning
1	English	energy	The impetus behind all motion and all activity;...
2	Middle French	énergie	—
3	Late Latin	energia	energy; efficiency
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 English Self

Step	Language	Word	Meaning
1	English	Self	Himself, herself, itself, themself, themselves; that specific (person mentioned)
2	Middle English	salve	Alternative form of sauf
3	Old English	sealf	salve
4	Proto-West Germanic	salbu	salve, ointment
5	Proto-Germanic	salbō	salve, ointment
6	Proto-Indo-European	solp-éh₂	—
7	Proto-Indo-European	selp-	fat, oil

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