Where does “kaksinnäkö” come from?

kaksinnäkö (Finnish) comes from Finnish näkö, from Proto-Finnic näko, from Proto-Finnic -o, from Proto-Uralic -w.

Ancestry of “kaksinnäkö”, step by step

kaksinnäkö traces back through two separate lines of ancestry.

via Finnish näkö

StepLanguageWordMeaning
1Finnishnäkösight, vision, eyesight; look, looks; face
2Proto-Finnicnäkosight, vision; look, appearance; face
3Proto-Finnic-oForms action/result nouns from verbs
4Proto-Uralic-w

via Finnish kaksin

StepLanguageWordMeaning
1FinnishkaksinInstructive plural form of kaksi; alone
Every word from Proto-Uralic -wEvery word from Proto-Finnic -oEvery word from Proto-Finnic näko