Where does “Frosttiefe” come from?

Frosttiefe (German) comes from German frost, from Middle High German vrost, from Old High German frost, from Proto-West Germanic *frost, from Proto-Germanic frustaz, from Proto-Indo-European prustós — frost.

Frosttiefe (German): frost line

Definitions

  1. frost line

Ancestry of “Frosttiefe”, step by step

Frosttiefe traces back through two separate lines of ancestry.

via German frost

StepLanguageWordMeaning
1Germanfrostfrost; freezing weather weather conditions below 0 °C
2Middle High Germanvrost—
3Old High Germanfrostfrost
4Proto-West Germanic*frost—
5Proto-Germanicfrustazcold; frost; freezing weather; frost; rime
6Proto-Indo-Europeanprustósfrost

via German tiefe

StepLanguageWordMeaning
1Germantiefedepth
2Middle High Germantiefe—
3Old High Germantiufīdepth
Every word from Proto-Indo-European prustós →Every word from Proto-Germanic frustaz →Every word from Proto-West Germanic *frost →