Where does “Dînculescu” come from?

Dînculescu (Romanian) comes from Romanian Dîncu, from Bulgarian Дънко, from Bulgarian дъно, from Proto-Slavic dъno, from Proto-Indo-European *dʰewb-.

Ancestry of “Dînculescu”, step by step

StepLanguageWordMeaning
1RomanianDîncu—
2BulgarianДънко—
3Bulgarianдъноbottom
4Proto-Slavicdъnobottom
5Proto-Indo-European*dʰewb-—
Every word from Proto-Indo-European *dʰewb- →Every word from Proto-Slavic dъno →Every word from Bulgarian дъно →