Where does “mittahävikki” come from?

mittahävikki (Finnish) comes from Finnish hävikki, from Finnish -kki, from Proto-Finnic -kkei.

Ancestry of “mittahävikki”, step by step

mittahävikki traces back through two separate lines of ancestry.

via Finnish hävikki

StepLanguageWordMeaning
1Finnishhävikkiloss
2Finnish-kkiCreates action nouns from verbs; Creates...
3Proto-Finnic-kkei—

via Finnish mitta

StepLanguageWordMeaning
1Finnishmittameasure; length, measure
2Proto-Finnicmittameasure
Every word from Proto-Finnic -kkei →Every word from Finnish -kki →Every word from Finnish hävikki →