Where does “lämmönvaihtelu” come from?

lämmönvaihtelu (Finnish) comes from Finnish vaihtelu, from Finnish vaihdella, from Finnish vaihtaa, from Proto-Finnic vaihtadak, from Proto-Finnic -tadak, from Proto-Uralic -ta- — Forms verbs from nouns; Forms causative verbs...

lämmönvaihtelu (Finnish): temperature instability, temperature fluctuation

Definitions

  1. temperature instability, temperature fluctuation

Ancestry of “lämmönvaihtelu”, step by step

lämmönvaihtelu traces back through two separate lines of ancestry.

via Finnish vaihtelu

StepLanguageWordMeaning
1Finnishvaihteluvariation; fluctuation
2FinnishvaihdellaTo change repeatedly; To vary; To fluctuate
3Finnishvaihtaato change, replace; to exchange, switch; to swap
4Proto-Finnicvaihtadakto change
5Proto-Finnic-tadakForms verbs from both nominal and verbal stems
6Proto-Uralic-ta-Forms verbs from nouns; Forms causative verbs...

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-Uralic -ta-Every word from Proto-Finnic -tadakEvery word from Proto-Finnic vaihtadak