Where does “Stepanencu” come from?

Stepanencu (Romanian) comes from Ukrainian Степаненко, from Ukrainian -е́нко, from Ukrainian Тара́с, from Ancient Greek Ταράσιος, from Ancient Greek ταράσσω, from Proto-Indo-European dʰreh₂gʰ- — to irritate; rough.

Ancestry of “Stepanencu”, step by step

Step	Language	Word	Meaning
1	Ukrainian	Степаненко	—
2	Ukrainian	-е́нко	Added to a stem to form a patronymic or matronymic surname
3	Ukrainian	Тара́с	—
4	Ancient Greek	Ταράσιος	—
5	Ancient Greek	ταράσσω	I disturb; I agitate
6	Proto-Indo-European	dʰreh₂gʰ-	to irritate; rough

Every word from Proto-Indo-European dʰreh₂gʰ- →Every word from Ukrainian -е́нко →Every word from Ancient Greek ταράσσω →