Where does “heijastussumu” come from?

heijastussumu (Finnish) comes from Finnish heijastus, from Finnish -us, from Proto-Finnic -us — Forms some nouns from nominal stems.

heijastussumu (Finnish): reflection nebula

Definitions

  1. reflection nebula

Ancestry of “heijastussumu”, step by step

heijastussumu traces back through two separate lines of ancestry.

via Finnish heijastus

StepLanguageWordMeaning
1Finnishheijastusreflection
2Finnish-usForms nouns from verbs, describing an action or...
3Proto-Finnic-usForms some nouns from nominal stems

via Finnish sumu

StepLanguageWordMeaning
1Finnishsumufog, mist; nebula
2Proto-Finnicsumufog, mist
Every word from Proto-Finnic -us →Every word from Finnish -us →Every word from Finnish heijastus →