Where does “Adumitrei” come from?

Adumitrei (Romanian) comes from Romanian Dumitra, from Romanian Dumitru, from Old Church Slavonic Дьмитръ, from Ancient Greek Δημήτριος, from Ancient Greek Δημήτηρ, from Ancient Greek μήτηρ, from Proto-Hellenic mā́tēr, from Proto-Indo-European méh₂tēr — mother.

Ancestry of “Adumitrei”, step by step

Adumitrei traces back through two separate lines of ancestry.

via Romanian Dumitra

Step	Language	Word	Meaning
1	Romanian	Dumitra	—
2	Romanian	Dumitru	—
3	Old Church Slavonic	Дьмитръ	—
4	Ancient Greek	Δημήτριος	—
5	Ancient Greek	Δημήτηρ	Demeter
6	Ancient Greek	μήτηρ	mother; source or origin
7	Proto-Hellenic	mā́tēr	mother
8	Proto-Indo-European	méh₂tēr	mother

via Romanian A

Step	Language	Word	Meaning
1	Romanian	A	—
2	Vulgar Latin	ae(t)	—
3	Latin	habet	third-person singular present active indicative...
4	Latin	habeo	I have, hold; I own, have; I possess, have
5	Proto-Italic	habēō	—
6	Proto-Indo-European	gʰh₁bʰ-	to grab, to take; to grab, take

Every word from Proto-Indo-European méh₂tēr →Every word from Proto-Hellenic mā́tēr →Every word from Ancient Greek μήτηρ →