Where does “Hirntod” come from?

Hirntod (German) comes from German tōd, from Middle High German tōt, from Old High German tōt, from Proto-West Germanic daud, from Proto-Germanic daudaz, from Proto-Indo-European dʰowHtós.

Hirntod (German): brain death

Definitions

  1. brain death

Ancestry of “Hirntod”, step by step

Hirntod traces back through two separate lines of ancestry.

via German tōd

StepLanguageWordMeaning
1Germantōddeath
2Middle High Germantōt—
3Old High Germantōtdead
4Proto-West Germanicdauddead
5Proto-Germanicdaudazdead
6Proto-Indo-EuropeandʰowHtós—

via German Hirn

StepLanguageWordMeaning
1GermanHirnbrain
2Middle High Germanhirne—
3Old High Germanhirnibrain
4Proto-West Germanic*hirʀnībrain
Every word from Proto-Indo-European dʰowHtós →Every word from Proto-Germanic daudaz →Every word from Proto-West Germanic daud →