Where does “kanervakäärme” come from?

kanervakäärme (Finnish) comes from Finnish käärme, from Proto-Finnic kärmeh, from Proto-Finnic kärmeš, from Proto-Balto-Slavic kr̥mis, from Proto-Indo-European kʷŕ̥mis — worm.

Ancestry of “kanervakäärme”, step by step

kanervakäärme traces back through two separate lines of ancestry.

via Finnish käärme

StepLanguageWordMeaning
1Finnishkäärmesnake
2Proto-Finnickärmehsnake
3Proto-Finnickärmeš—
4Proto-Balto-Slavickr̥misworm
5Proto-Indo-Europeankʷŕ̥misworm

via Finnish Kanerva

StepLanguageWordMeaning
1FinnishKanervaheather, Calluna vulgaris
2Finnishkanervaheather, "Calluna vulgaris"
Every word from Proto-Indo-European kʷŕ̥mis →Every word from Proto-Balto-Slavic kr̥mis →Every word from Proto-Finnic kärmeš →