Where does “actyf” come from?

actyf (Middle English) comes from Old French actif, from Latin āctīvus, from Ancient Greek ἐνεργητικός, from Ancient Greek ἐνεργέω, from Ancient Greek ἐνεργός, from Ancient Greek ἐν-, from Ancient Greek ἐν, from Ancient Greek δέρμα — Creates collective nouns, which refer to groups...

Ancestry of “actyf”, step by step

Step	Language	Word	Meaning
1	Old French	actif	active
2	Latin	āctīvus	—
3	Ancient Greek	ἐνεργητικός	Able to act on; acting on; Active; In the active...
4	Ancient Greek	ἐνεργέω	to be in action or activity, to operate; to...
5	Ancient Greek	ἐνεργός	at work, active
6	Ancient Greek	ἐν-	in, within; on
7	Ancient Greek	ἐν	in, on, at; among; in, at, or during the time of
8	Ancient Greek	δέρμα	skin, hide
9	Ancient Greek	γλυφή	carving, carved work; hole cut
10	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
11	Proto-Indo-European	-íh₂	—
12	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

Every word from Proto-Indo-European -h₂ →