Where does “Schallmauer” come from?

Schallmauer (German) comes from German Mauer, from Middle High German mūre, from Old High German mūra, from Proto-West Germanic *mūrā, from Latin mūrus, from Old Latin moerus, from Proto-Indo-European mēy- — soft, tender, dear.

Schallmauer (German): sound barrier, sonic barrier

Definitions

  1. sound barrier, sonic barrier

Ancestry of “Schallmauer”, step by step

Schallmauer traces back through two separate lines of ancestry.

via German Mauer

StepLanguageWordMeaning
1GermanMauera wall, usually one made of stone or concrete
2Middle High Germanmūrewall
3Old High Germanmūrawall
4Proto-West Germanic*mūrāwall
5Latinmūruswall, city wall(s), (usually of a city, as opposed to pariēs)
6Old Latinmoerus
7Proto-Indo-Europeanmēy-soft, tender, dear

via German Schall

StepLanguageWordMeaning
1GermanSchallsound
2Middle High Germanschaltasteless, turbid
3Old High Germanscal
4Proto-West Germanicskellanto sound, clatter, ring
5Proto-Germanicskellanąto sound, clatter, ring
6Proto-Indo-Europeanḱelh₁-to warm up, to be hot; to warm up, be hot
Every word from Proto-Indo-European mēy-Every word from Old Latin moerusEvery word from Latin mūrus