Where does “tasalämmin” come from?

tasalämmin (Finnish) comes from Finnish tasa, from Proto-Finnic tasa, from Proto-Uralic taśa — even.

Ancestry of “tasalämmin”, step by step

tasalämmin traces back through two separate lines of ancestry.

via Finnish tasa

StepLanguageWordMeaning
1Finnishtasaof equal height; of the same level
2Proto-Finnictasaeven
3Proto-Uralictaśaeven

via Finnish lämmin

StepLanguageWordMeaning
1Finnishlämminwarm
2Proto-Finniclämbinwarm
3Proto-Uraliclämpe—
Every word from Proto-Uralic taśa →Every word from Proto-Finnic tasa →Every word from Finnish tasa →