Where does “tungtvann” come from?

tungtvann (Norwegian Bokmål) comes from Norwegian Bokmål vann, from Danish vand, from Old Danish watn, from Old Norse vatn, from Proto-Germanic watōr, from Proto-Indo-European wódr̥, from Proto-Indo-European wed-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

tungtvann (Norwegian Bokmål): heavy water

Definitions

  1. heavy water

Ancestry of “tungtvann”, step by step

tungtvann traces back through two separate lines of ancestry.

via Norwegian Bokmål vann

StepLanguageWordMeaning
1Norwegian Bokmålvannwater; body of water; pond, lake; imperative of...
2Danishvandwater; sea; soft drink
3Old Danishwatn—
4Old Norsevatnwater; lake; waterway, river
5Proto-Germanicwatōrwater
6Proto-Indo-Europeanwódr̥water
7Proto-Indo-Europeanwed-water
8Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...

via Norwegian Bokmål tung

StepLanguageWordMeaning
1Norwegian Bokmåltungheavy
2Old Norseþungrheavy
3Proto-Germanicþunguzheavy
4Proto-Indo-Europeanténgʰus—
Every word from Proto-Indo-European wey- →Every word from Proto-Indo-European wed- →Every word from Proto-Indo-European wódr̥ →