Where does “ildfast” come from?

ildfast (Danish) comes from Danish ild, from Old Danish eld, from Old Norse eldr, from Proto-Germanic ailidaz, from Proto-Germanic ailijaną, from Proto-Indo-European h₂eydʰ- — to ignite; fire.

ildfast (Danish): ovenproof

Definitions

  1. ovenproof

Ancestry of “ildfast”, step by step

ildfast traces back through two separate lines of ancestry.

via Danish ild

StepLanguageWordMeaning
1Danishildfire; ardor
2Old Danisheld—
3Old Norseeldrfire
4Proto-Germanicailidazfire, pyre
5Proto-Germanicailijanąto kindle
6Proto-Indo-Europeanh₂eydʰ-to ignite; fire

via Danish fast

StepLanguageWordMeaning
1Danishfastfirm; solid; tight
2Germanfastalmost; nearly; hardly; inflection of fasen: ##...
3Old High Germanfastofirmly
4Proto-West Germanicfastfixed, fast
5Proto-Germanicfastuzfixed, firm, secure
Every word from Proto-Indo-European h₂eydʰ- →
ildfast — Etymology, Origin & Word History | Etymology Explorer