Where does “Feuermauer” come from?

Feuermauer (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.

Feuermauer (German): firewall

Definitions

  1. firewall

Ancestry of “Feuermauer”, step by step

Feuermauer 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 Feuer

StepLanguageWordMeaning
1GermanFeuerfire; fire; the act of firing; a means for...
2Middle High Germanviurfire
3Old High Germanfiurfire
4Proto-West Germanicfuirfire
5Proto-Germanicfōrfire
6Proto-Indo-Europeanpéh₂wr̥bonfire; spelt
Every word from Proto-Indo-European mēy-Every word from Old Latin moerusEvery word from Latin mūrus