Where does “Tiefschlaf” come from?

Tiefschlaf (German) comes from German tief, from Middle High German tief, from Old High German tiuf, from Proto-West Germanic deup, from Proto-Albanian deupa, from Proto-Indo-European dʰewp-, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Tiefschlaf (German): deep sleep

Definitions

  1. deep sleep

Ancestry of “Tiefschlaf”, step by step

Tiefschlaf traces back through two separate lines of ancestry.

via German tief

StepLanguageWordMeaning
1Germantiefdeep; low
2Middle High Germantief—
3Old High Germantiufdeep
4Proto-West Germanicdeupdeep
5Proto-Albaniandeupacradle, deposit
6Proto-Indo-Europeandʰewp-Alternative form of *dʰewbʰ-; deep
7Proto-Indo-Europeandʰewbʰ-deep
8Proto-Indo-Europeandʰewh₂-smoke; mist, haze

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,...
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Indo-European dʰewbʰ- →Every word from Proto-Indo-European dʰewp- →