Where does “kokonaisheijastus” come from?

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

kokonaisheijastus (Finnish): total internal reflection

Definitions

  1. total internal reflection

Ancestry of “kokonaisheijastus”, step by step

kokonaisheijastus 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 kokonainen

StepLanguageWordMeaning
1Finnishkokonainenwhole, full, complete; entire
2Finnishnainenwoman; lady; first-person singular potential...
3Proto-Finnicnainenwoman; wife
Every word from Proto-Finnic -usEvery word from Finnish -usEvery word from Finnish heijastus