Where does “perunanlohko” come from?

perunanlohko (Finnish) comes from Finnish peruna, from Swedish jordpäron, from Swedish jord, from Old Swedish iorþ, from Old Norse jǫrð, from Proto-Germanic erþō, from Proto-Indo-European h₁er- — earth.

Ancestry of “perunanlohko”, step by step

perunanlohko traces back through two separate lines of ancestry.

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

via Finnish lohko

StepLanguageWordMeaning
1Finnishlohkosection; lobe; block, chunk
2Finnish-oForms result or action nouns from verbs; Forms...
3Proto-Finnic-oForms action/result nouns from verbs
4Proto-Uralic-w—
Every word from Proto-Indo-European h₁er- →Every word from Proto-Germanic erþō →Every word from Old Norse jǫrð →