Where does “Sîntionean” come from?

Sîntionean (Romanian) comes from Romanian Sântion, from Romanian Ion, from French ion, from English ion, from English anion, from Ancient Greek ἀνιόν, from Ancient Greek ἄνειμι, from Ancient Greek ἀνά — up, upon.

Ancestry of “Sîntionean”, step by step

Step	Language	Word	Meaning
1	Romanian	Sântion	—
2	Romanian	Ion	John
3	French	ion	ion
4	English	ion	An atom or group of atoms bearing an electrical...
5	English	anion	A negatively charged ion
6	Ancient Greek	ἀνιόν	going up
7	Ancient Greek	ἄνειμι	go up
8	Ancient Greek	ἀνά	on board; on, upon
9	Proto-Hellenic	*aná	up, upon

Every word from Proto-Hellenic *aná →Every word from Ancient Greek ἀνά →Every word from Ancient Greek ἄνειμι →