Where does “underjordisk” come from?

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

underjordisk (Swedish): subterranean

Definitions

  1. subterranean

Ancestry of “underjordisk”, step by step

StepLanguageWordMeaning
1Swedishjordearth, soil; a rock- or sand-based unconsolidated...
2Old Swedishiorþearth, land
3Old Norsejǫrðearth
4Proto-Germanicerþōearth
5Proto-Indo-Europeanh₁er-earth
Every word from Proto-Indo-European h₁er- →Every word from Proto-Germanic erþō →Every word from Old Norse jǫrð →