Where does “lämpöaalto” come from?

lämpöaalto (Finnish) comes from Finnish aalto, from Proto-Finnic alto, from Proto-Germanic aldǭ, from Proto-Indo-European Holdʰō(n), from Proto-Indo-European Holdʰu- — trough, canoe.

lämpöaalto (Finnish): heat wave

Definitions

  1. heat wave

Ancestry of “lämpöaalto”, step by step

lämpöaalto traces back through two separate lines of ancestry.

via Finnish aalto

StepLanguageWordMeaning
1Finnishaaltowave; outbreak
2Proto-Finnicaltowave
3Proto-Germanicaldǭtrough, hollow
4Proto-Indo-EuropeanHoldʰō(n)—
5Proto-Indo-EuropeanHoldʰu-trough, canoe

via Finnish lämpö

StepLanguageWordMeaning
1Finnishlämpöwarmth, heat; heat; fever
2Finnish-oForms result or action nouns from verbs; Forms...
3Proto-Finnic-oForms action/result nouns from verbs
4Proto-Uralic-w—
Every word from Proto-Indo-European Holdʰu- →Every word from Proto-Indo-European Holdʰō(n) →Every word from Proto-Germanic aldǭ →