Where does “Mitrulescu” come from?

Mitrulescu (Romanian) comes from Romanian Mitru, 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 “Mitrulescu”, step by step

Step	Language	Word	Meaning
1	Romanian	Mitru	—
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

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