Where does “knogjärn” come from?

knogjärn (Swedish) comes from Swedish järn, from Old Norse járn, from Proto-Germanic īsarną, from Proto-Celtic īsarnom, from Proto-Indo-European h₁ésh₂r̥ — blood.

knogjärn (Swedish): brass knuckles, knuckle duster

Definitions

  1. brass knuckles, knuckle duster

Ancestry of “knogjärn”, step by step

knogjärn traces back through two separate lines of ancestry.

via Swedish järn

StepLanguageWordMeaning
1Swedishjärniron; certain sharp tools with a blade made of...
2Old Norsejárniron
3Proto-Germanicīsarnąiron
4Proto-Celticīsarnomiron
5Proto-Indo-Europeanh₁ésh₂r̥blood

via Swedish knoge

StepLanguageWordMeaning
1Swedishknogea knuckle
Every word from Proto-Indo-European h₁ésh₂r̥Every word from Proto-Celtic īsarnomEvery word from Proto-Germanic īsarną