Where does “Ostsiedlung” come from?

Ostsiedlung (German) comes from German ōst, from Middle High German ōst, from Old High German ōst, from Old Norse austr, from Proto-Germanic austrą, from Proto-Germanic austraz, from Proto-Indo-European *h₂éwsteros — in the direction of dawn, east.

Ostsiedlung (German): The medieval eastward migration and settlement of Germanic-speaking peoples from the Holy Roman Empire

Definitions

  1. The medieval eastward migration and settlement of Germanic-speaking peoples from the Holy Roman Empire

Ancestry of “Ostsiedlung”, step by step

Ostsiedlung traces back through two separate lines of ancestry.

via German ōst

StepLanguageWordMeaning
1Germanōstthe east
2Middle High Germanōst—
3Old High Germanōsteast
4Old Norseaustreast
5Proto-Germanicaustrąeast; east, eastward
6Proto-Germanicaustrazeast, eastern
7Proto-Indo-European*h₂éwsterosin the direction of dawn, east

via German Siedlung

StepLanguageWordMeaning
1GermanSiedlungsettlement; Short for Wohnsiedlung
2German-ung-ing; "forms nouns from verbs, usually describing...
3Middle High German-ung—
4Old High German-unga-ing
5Proto-Germanic-ungō-ing, -ion. "Forms gerund nouns from verbs."
Every word from Proto-Indo-European *h₂éwsteros →Every word from Proto-Germanic austraz →Every word from Proto-Germanic austrą →