Where does “nollaluokka” come from?

nollaluokka (Finnish) comes from Finnish nolla, from Swedish nolla, from Italian nulla, from Latin nūlla, from Latin nūllus, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

nollaluokka (Finnish): class 0 appliance protection class

Definitions

  1. class 0 appliance protection class

Ancestry of “nollaluokka”, step by step

nollaluokka traces back through two separate lines of ancestry.

via Finnish nolla

StepLanguageWordMeaning
1Finnishnollazero; digit zero; good-for-nothing
2Swedishnollaa zero; the symbol, or digit, "0"; a zero; a...
3Italiannullafeminine singular of nullo; nothing, anything;...
4Latinnūllano
5Latinnūllusno one, none, not any, nothing
6Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
7Proto-Indo-Europeanóynosone; single

via Finnish luokka

StepLanguageWordMeaning
1Finnishluokkaclass; class, social class; grade
2Finnishluokkishaft bow
3Proto-Slaviclǫkъbow
4Proto-Balto-Slavic*lankásbow
5Proto-Indo-Europeanlenk-to bend
Every word from Proto-Indo-European óynosEvery word from Proto-Italic oinosEvery word from Latin nūllus