Where does “hetebølge” come from?

hetebølge (Norwegian Bokmål) comes from Norwegian Bokmål bølge, from Danish bølge, from Old Norse bylgja, from Proto-Germanic bulgijō, from Proto-Indo-European bʰelǵʰ-, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

hetebølge (Norwegian Bokmål): a heatwave

Definitions

  1. a heatwave

Ancestry of “hetebølge”, step by step

hetebølge traces back through two separate lines of ancestry.

via Norwegian Bokmål bølge

StepLanguageWordMeaning
1Norwegian Bokmålbølgea wave
2Danishbølgewave; to wave
3Old Norsebylgjawave, billow
4Proto-Germanicbulgijōwave, billow
5Proto-Indo-Europeanbʰelǵʰ-to swell
6Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
7Proto-Indo-Europeanbʰōl-—

via Norwegian Bokmål hete

StepLanguageWordMeaning
1Norwegian Bokmålhetedefinite singular of het; plural of het; heat
2Old Norseheitato be called, to be named; to promise
3Proto-Germanichaitanąto address, to call; to name; to be called
4Proto-Indo-Europeanḱey-to be lying down; to settle
Every word from Proto-Indo-European bʰōl- →Every word from Proto-Indo-European bʰel- →Every word from Proto-Indo-European bʰelǵʰ- →