Where does “Dauerschlaf” come from?

Dauerschlaf (German) comes from German Schlaf, from German slāf, from Middle High German slāf, from Old High German slāf, from Proto-Germanic slap-, from Proto-Indo-European (s)leh₂b- — to hang loosely, be weak; to be weak, limp,...

Ancestry of “Dauerschlaf”, step by step

Dauerschlaf traces back through two separate lines of ancestry.

via German Schlaf

StepLanguageWordMeaning
1GermanSchlafsleep; temple
2Germanslāf
3Middle High Germanslāf
4Old High Germanslāfslack
5Proto-Germanicslap-
6Proto-Indo-European(s)leh₂b-to hang loosely, be weak; to be weak, limp,...

via German Dauer

StepLanguageWordMeaning
1GermanDauerduration; permanence

Words derived from “Dauerschlaf

Every word from Proto-Indo-European (s)leh₂b-Every word from Proto-Germanic slap-Every word from Old High German slāf