Where does “nollgrad” come from?

nollgrad (Swedish) comes from Swedish noll, from Latin nūllus, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

nollgrad (Swedish): degree around freezing (0 °C)

Definitions

  1. degree around freezing (0 °C)

Ancestry of “nollgrad”, step by step

nollgrad traces back through two separate lines of ancestry.

via Swedish noll

StepLanguageWordMeaning
1Swedishnollzero
2Latinnūllusno one, none, not any, nothing
3Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
4Proto-Indo-Europeanóynosone; single

via Swedish grad

StepLanguageWordMeaning
1Swedishgraddegree (extent)
2Latingradusa step, pace; a stage, degree; a rank
3Proto-Italicgraðus
4Proto-Indo-Europeangʰradʰ-
Every word from Proto-Indo-European óynos