Where does “kuunpimennys” come from?

kuunpimennys (Finnish) comes from Finnish pimennys, from Finnish pimentyä, from Finnish pimentää, from Finnish pimetä, from Finnish -etä, from Proto-Finnic -t'ak, from Proto-Uralic -ta- — Forms verbs from nouns; Forms causative verbs...

kuunpimennys (Finnish): lunar eclipse

Definitions

  1. lunar eclipse

Ancestry of “kuunpimennys”, step by step

kuunpimennys traces back through two separate lines of ancestry.

via Finnish pimennys

StepLanguageWordMeaning
1Finnishpimennyseclipse
2FinnishpimentyäTo darken
3Finnishpimentääto darken
4Finnishpimetäto darken, to get dark
5Finnish-etäFront vowel variant of -eta
6Proto-Finnic-t'akForms verbs from nominal stems, generally with a causative, factitive or instrumental meaning
7Proto-Uralic-ta-Forms verbs from nouns; Forms causative verbs...

via Finnish Kuu

StepLanguageWordMeaning
1FinnishKuuThe Moon the satellite of the Earth
2Finnishkuusisix; spruce; Norway spruce, "Picea abies"
3Proto-Finnickuucisix
4Proto-Uralickutteridge; six
Every word from Proto-Uralic -ta-Every word from Finnish -etäEvery word from Proto-Finnic -t'ak