Where does “kausivaihtelu” come from?

kausivaihtelu (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...

kausivaihtelu (Finnish): seasonality

Definitions

  1. seasonality

Ancestry of “kausivaihtelu”, step by step

kausivaihtelu 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 kausi

StepLanguageWordMeaning
1Finnishkausiperiod, age, epoch, season; term; period
2Proto-Finnickauci(section of a) road, way, path; part of a journey
3Proto-Finno-Permickawteroad? way? passage ?
Every word from Proto-Uralic -ta- →Every word from Proto-Finnic -tadak →Every word from Proto-Finnic vaihtadak →