Where does “Ostzone” come from?

Ostzone (German) comes from German Zone, from Italian zona, from Spanish zona, from Portuguese zona, from Russian зо́на, from Latin zōna, from Ancient Greek ζώνη — belt, sash.

Ostzone (German): the Soviet occupation zone in Germany

Definitions

the Soviet occupation zone in Germany

Ancestry of “Ostzone”, step by step

Ostzone traces back through two separate lines of ancestry.

via German Zone

Step	Language	Word	Meaning
1	German	Zone	zone
2	Italian	zona	a zone, area or district
3	Spanish	zona	zone, district, area
4	Portuguese	zona	zone; area, region; mess
5	Russian	зо́на	zone
6	Latin	zōna	belt, girdle
7	Ancient Greek	ζώνη	belt, sash

via German ōst

Step	Language	Word	Meaning
1	German	ōst	the east
2	Middle High German	ōst	—
3	Old High German	ōst	east
4	Old Norse	austr	east
5	Proto-Germanic	austrą	east; east, eastward
6	Proto-Germanic	austraz	east, eastern
7	Proto-Indo-European	*h₂éwsteros	in the direction of dawn, east

Every word from Ancient Greek ζώνη →Every word from Latin zōna →Every word from Russian зо́на →