Where does “Ersatzdehnung” come from?

Ersatzdehnung (German) comes from German Ersatz, from German ersetzen, from Middle High German ersetzen, from Old High German irsezzen, from Proto-Germanic *uʀsattjan, from Proto-Germanic *sattjan, from Proto-Germanic satjaną, from Proto-Indo-European sodéyeti — Creates transitive imperfective verbs from roots.

Ersatzdehnung (German): compensatory lengthening

Definitions

  1. compensatory lengthening

Ancestry of “Ersatzdehnung”, step by step

Ersatzdehnung traces back through two separate lines of ancestry.

via German Ersatz

StepLanguageWordMeaning
1GermanErsatzreplacement, substitute; compensation
2Germanersetzento replace, to substitute
3Middle High Germanersetzen—
4Old High Germanirsezzen—
5Proto-Germanic*uʀsattjan—
6Proto-Germanic*sattjan—
7Proto-Germanicsatjanąto set, to place down
8Proto-Indo-Europeansodéyetito set, to seat, to cause to sit
9Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
10Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

via German Dehnung

StepLanguageWordMeaning
1GermanDehnungstretching; dilation; lengthening
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 -yeti →Every word from Proto-Indo-European -éyeti →Every word from Proto-Indo-European sodéyeti →