Where does “Dima” come from?

Dima (Romanian) comes from Russian Дима, from Russian Дми́трий, from Latin Demetrius, from Ancient Greek Δημήτριος, from Ancient Greek Δημήτηρ, from Ancient Greek μήτηρ, from Proto-Hellenic mā́tēr, from Proto-Indo-European méh₂tēr — mother.