Where does “Eldjárn” come from?

Eldjárn (Icelandic) comes from Old Norse eldr, from Proto-Germanic ailidaz, from Proto-Germanic ailijaną, from Proto-Indo-European h₂eydʰ- — to ignite; fire.

Ancestry of “Eldjárn”, step by step

Eldjárn traces back through two separate lines of ancestry.

via Old Norse eldr

StepLanguageWordMeaning
1Old Norseeldrfire
2Proto-Germanicailidazfire, pyre
3Proto-Germanicailijanąto kindle
4Proto-Indo-Europeanh₂eydʰ-to ignite; fire

via Old Norse járn

StepLanguageWordMeaning
1Old Norsejárniron
2Proto-Germanicīsarnąiron
3Proto-Celticīsarnomiron
4Proto-Indo-Europeanh₁ésh₂r̥blood
Every word from Proto-Indo-European h₂eydʰ- →Every word from Proto-Germanic ailijaną →Every word from Proto-Germanic ailidaz →