Where does “nulrum” come from?

nulrum (Danish) comes from Danish nul, from French nul, from Middle French nul, from Old French nul, from Latin nūllus, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

nulrum (Danish): kernel, set of vectors that is mapped to zero by some transformation

Definitions

  1. kernel, set of vectors that is mapped to zero by some transformation

Ancestry of “nulrum”, step by step

nulrum traces back through two separate lines of ancestry.

via Danish nul

StepLanguageWordMeaning
1Danishnulzero; no way; The numeric symbol that represents...
2Frenchnulno, nil; of poor quality, lousy, rubbish; lame
3Middle Frenchnulnobody; no one; none
4Old Frenchnulnobody; no one; none
5Latinnūllusno one, none, not any, nothing
6Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
7Proto-Indo-Europeanóynosone; single

via Danish rum

StepLanguageWordMeaning
1Danishrumroom; compartment; space
2Old Norserúmroom; space
3Proto-Germanicrūmąroom, open space
4Proto-Indo-Europeanrewh₁-free space
Every word from Proto-Indo-European óynos