Where does “vuosivaihtelu” come from?

vuosivaihtelu (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...

vuosivaihtelu (Finnish): annual variation, annual fluctuation

Definitions

  1. annual variation, annual fluctuation

Ancestry of “vuosivaihtelu”, step by step

vuosivaihtelu 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 vuosi

StepLanguageWordMeaning
1Finnishvuosiyear
2Proto-Finnicvoociyear
3Proto-Finnicoote
4Proto-Uralicëdeyear
Every word from Proto-Uralic -ta-Every word from Proto-Finnic -tadakEvery word from Proto-Finnic vaihtadak