Where does “въстокъ” come from?

въстокъ (Old East Slavic) comes from Old Church Slavonic въстокъ, from Ancient Greek ἀνατολή, from Ancient Greek ἀνατέλλω, from Ancient Greek ἀνά, from Proto-Hellenic *aná — up, upon.

въстокъ (Old East Slavic): east

Definitions

east

Ancestry of “въстокъ”, step by step

Step	Language	Word	Meaning
1	Old Church Slavonic	въстокъ	rising; east
2	Ancient Greek	ἀνατολή	rising above the horizon; the direction of...
3	Ancient Greek	ἀνατέλλω	I rise up; rise, grow up; I rise
4	Ancient Greek	ἀνά	on board; on, upon
5	Proto-Hellenic	*aná	up, upon

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