Where does “perunaviljelys” come from?

perunaviljelys (Finnish) comes from Finnish viljelys, from Finnish viljellä, from Finnish ellä, from Finnish Elina, from Finnish Helena, from Swedish Helena, from Ancient Greek ἑλένη, from Proto-Indo-European swel- — to smolder; burn; scorch; beam, board, frame,...

Ancestry of “perunaviljelys”, step by step

perunaviljelys traces back through two separate lines of ancestry.

via Finnish viljelys

StepLanguageWordMeaning
1FinnishviljelysSynonym of viljelmä; Synonym of viljely
2FinnishviljelläTo cultivate, farm, till; To raise, grow; To...
3Finnishelläif
4FinnishElinaHelen
5FinnishHelena
6SwedishHelenaHelen
7Ancient Greekἑλένηtorch, firebrand; corposant, St. Elmo's fire;...
8Proto-Indo-Europeanswel-to smolder; burn; scorch; beam, board, frame,...

via Finnish peruna

StepLanguageWordMeaning
1Finnishperunapotato, "Solanum tuberosum"
2Swedishjordpäronpotato
3Swedishjordearth, soil; a rock- or sand-based unconsolidated...
4Old Swedishiorþearth, land
5Old Norsejǫrðearth
6Proto-Germanicerþōearth
7Proto-Indo-Europeanh₁er-earth
Every word from Proto-Indo-European swel-Every word from Ancient Greek ἑλένηEvery word from Swedish Helena