Where does “εγκύκλιος” come from?

εγκύκλιος (Ancient Greek) comes from Ancient Greek ἐγκύκλιος, from Ancient Greek ἐν-, from Ancient Greek ἐν, from Ancient Greek δέρμα, from Ancient Greek γλυφή, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

εγκύκλιος (Ancient Greek): circular

Definitions

circular

Ancestry of “εγκύκλιος”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἐγκύκλιος	circular
2	Ancient Greek	ἐν-	in, within; on
3	Ancient Greek	ἐν	in, on, at; among; in, at, or during the time of
4	Ancient Greek	δέρμα	skin, hide
5	Ancient Greek	γλυφή	carving, carved work; hole cut
6	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
7	Proto-Indo-European	-íh₂	—
8	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

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