Where does “lämpösisältö” come from?

lämpösisältö (Finnish) comes from Finnish sisältö, from Finnish sisältää, from Finnish sisä-, from Proto-Finnic sicä, from Proto-Uralic śićä.

Ancestry of “lämpösisältö”, step by step

lämpösisältö traces back through two separate lines of ancestry.

via Finnish sisältö

StepLanguageWordMeaning
1Finnishsisältöcontent, contents; content; meaning
2FinnishsisältääTo include; to contain; To involve
3Finnishsisä-inner, internal, interior, inward; indoor; inland
4Proto-Finnicsicäinsides, inside
5Proto-Uralicśićä

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 śićäEvery word from Finnish sisä-Every word from Finnish sisältää