Where does “ilmastokausi” come from?

ilmastokausi (Finnish) comes from Finnish ilmasto, from Finnish Ilma, from Finnish -ri, from Finnish -ra, from Finnish -i, from Proto-Uralic -j — oblique plural.

ilmastokausi (Finnish): climatic period

Definitions

climatic period

Ancestry of “ilmastokausi”, step by step

ilmastokausi traces back through two separate lines of ancestry.

via Finnish ilmasto

Step	Language	Word	Meaning
1	Finnish	ilmasto	climate
2	Finnish	Ilma	air
3	Finnish	-ri	Used to create names of occupations from nouns or...
4	Finnish	-ra	Forms nouns or adjectives, mostly from nominal...
5	Finnish	-i	A nominal suffix used in eg. ukko → ukki; Used...
6	Proto-Uralic	-j	oblique plural

via Finnish kausi

Step	Language	Word	Meaning
1	Finnish	kausi	period, age, epoch, season; term; period
2	Proto-Finnic	kauci	(section of a) road, way, path; part of a journey
3	Proto-Finno-Permic	kawte	road? way? passage ?

Every word from Proto-Uralic -j →Every word from Finnish -i →Every word from Finnish -ri →