Where does “Sztefan” come from?

Sztefan (Kashubian) comes from German Stefan, from Latin Stephanus, from Ancient Greek Στέφανος, from Ancient Greek στέφω, from Proto-Hellenic stékʷʰō, from Proto-Indo-European stegʷʰ- — to enlace.

Ancestry of “Sztefan”, step by step

Step	Language	Word	Meaning
1	German	Stefan	—
2	Latin	Stephanus	—
3	Ancient Greek	Στέφανος	In particular: Stephen, an early Christian martyr
4	Ancient Greek	στέφω	I put around; I encircle, crown, wreath, garland
5	Proto-Hellenic	stékʷʰō	to enlace, crown, encircle
6	Proto-Indo-European	stegʷʰ-	to enlace

Every word from Proto-Indo-European stegʷʰ- →Every word from Proto-Hellenic stékʷʰō →Every word from Ancient Greek στέφω →