Where does “vaskikäärme” come from?

vaskikäärme (Finnish) comes from Finnish vaski, from Proto-Finnic vaski, from Proto-Uralic waśke, from Proto-Tocharian wi̯äsā, from Proto-Indo-European h₂é-h₂us-o-, from Proto-Indo-European h₂ews- — dawn; east; to draw water, scoop up.

Ancestry of “vaskikäärme”, step by step

vaskikäärme traces back through two separate lines of ancestry.

via Finnish vaski

StepLanguageWordMeaning
1Finnishvaskicopper; bronze; in this sense still living in...
2Proto-Finnicvaskicopper
3Proto-Uralicwaśkea metal; copper, iron?
4Proto-Tocharianwi̯äsāgold
5Proto-Indo-Europeanh₂é-h₂us-o-glow
6Proto-Indo-Europeanh₂ews-dawn; east; to draw water, scoop up

via Finnish käärme

StepLanguageWordMeaning
1Finnishkäärmesnake
2Proto-Finnickärmehsnake
3Proto-Finnickärmeš—
4Proto-Balto-Slavickr̥misworm
5Proto-Indo-Europeankʷŕ̥misworm
Every word from Proto-Indo-European h₂ews- →Every word from Proto-Indo-European h₂é-h₂us-o- →Every word from Proto-Tocharian wi̯äsā →