Where does “Mittelstreckenläuferin” come from?

Mittelstreckenläuferin (German) comes from German Mittelstreckenläufer, from German Mittelstrecke, from German Strecke, from German strecken, from Middle High German strecken, from Old High German strecken, from Proto-West Germanic strakkjan, from Proto-Indo-European (s)treg- — rigid, stiff; to be stiff, rigid, strong.

Ancestry of “Mittelstreckenläuferin”, step by step

StepLanguageWordMeaning
1GermanMittelstreckenläufermiddle-distance runner
2GermanMittelstreckemiddle distance
3GermanStreckestretch; route
4Germanstreckento straighten, stretch; to elongate, lengthen; to...
5Middle High Germanstrecken
6Old High Germanstrecken
7Proto-West Germanicstrakkjanto stretch, to make straight
8Proto-Indo-European(s)treg-rigid, stiff; to be stiff, rigid, strong
Every word from Proto-Indo-European (s)treg-