Where does “heat storm” come from?

heat storm (English) comes from English heat, from Middle English heten, from Old English hǣtan, from Proto-West Germanic haitijan, from Proto-Germanic haitijaną, from Proto-Germanic -janą, from Proto-Indo-European -yéti, from Proto-Indo-European yé- — he, she.

heat storm (English): An extended heat wave, defined as high temperatures over 100 degrees Fahrenheit over a large area for three consecutive days

Definitions

  1. An extended heat wave, defined as high temperatures over 100 degrees Fahrenheit over a large area for three consecutive days

Ancestry of “heat storm”, step by step

heat storm traces back through two separate lines of ancestry.

via English heat

StepLanguageWordMeaning
1EnglishheatThermal energy; The condition or quality of being...
2Middle EnglishhetenAlternative form of hetien
3Old Englishhǣtanto heat; become hot
4Proto-West Germanichaitijanto make hot, heat
5Proto-Germanichaitijanąto make hot, heat
6Proto-Germanic-janąDerives denominatives from nouns and factitives...
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she

via English storm

StepLanguageWordMeaning
1EnglishstormAny disturbed state of the atmosphere, especially...
2Middle EnglishstormA storm; an instance of intense wind and...
3Old Englishstormstorm
4Proto-West Germanic*sturmstorm
5Proto-Germanicsturmazstorm
6Proto-Indo-European(s)twer-to rotate, swirl, twirl, move around; to turn...
Every word from Chichewa iyeEvery word from Proto-Germanic -janąEvery word from Proto-Indo-European -yéti