Where does “Dauerfrost” come from?

Dauerfrost (German) comes from German dauer, from German dauern, from Middle High German dūren, from Middle Low German dūren, from Old French durer, from Latin dūrō, from Latin dūrus, from Proto-Italic dūros — far; long.

Dauerfrost (German): permafrost

Definitions

  1. permafrost

Ancestry of “Dauerfrost”, step by step

Dauerfrost traces back through two separate lines of ancestry.

via German dauer

StepLanguageWordMeaning
1Germandauerinflection of dauern: ## first-person singular...
2Germandauernto last, to continue, to persist; to last, to be...
3Middle High Germandūren
4Middle Low Germandūren
5Old Frenchdurerto last
6Latindūrōto harden, make hard
7Latindūrus
8Proto-Italicdūros
9Proto-Indo-Europeanduh₂-ró-slong, far
10Proto-Indo-Europeandweh₂-far; long

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
Every word from Proto-Indo-European dweh₂-
Dauerfrost — Etymology, Origin & Word History | Etymology Explorer