Where does “Ersatzfrau” come from?

Ersatzfrau (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.

Ersatzfrau (German): female substitute, stand in; female replacement

Definitions

  1. female substitute, stand in; female replacement

Ancestry of “Ersatzfrau”, step by step

Ersatzfrau 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 frau

StepLanguageWordMeaning
1Germanfrauone, they
2Middle High Germanvrouwewoman, lady, madam
3Old High Germanfrouwalady
4Proto-West Germanic*frauwjālady, wife of a lord woman of high standing
5Proto-Germanicfrawjǭlady, wife of a lord
6Proto-Indo-EuropeanproHwo-master, judge; right judge, master
7Proto-Indo-Europeanper-before, in front; first; to go through
8Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European -yetiEvery word from Proto-Indo-European -éyetiEvery word from Proto-Indo-European sodéyeti