Where does “cykelhjälm” come from?

cykelhjälm (Swedish) comes from Swedish hjälm, from Old Swedish hiælmber, from Old Norse hjálmr, from Proto-Germanic helmaz, from Proto-Germanic halmaz, from Proto-Indo-European ḱolh₂mos, from Proto-Indo-European ḱelh₂- — to pierce, strike; to stick; prick; stab.

cykelhjälm (Swedish): a bicycle helmet

Definitions

  1. a bicycle helmet

Ancestry of “cykelhjälm”, step by step

cykelhjälm traces back through two separate lines of ancestry.

via Swedish hjälm

StepLanguageWordMeaning
1Swedishhjälma helmet
2Old Swedishhiælmberhelmet
3Old Norsehjálmrhelmet
4Proto-Germanichelmazhelmet
5Proto-Germanichalmazhalm; stem; stalk; straw; hay
6Proto-Indo-Europeanḱolh₂mosstalk
7Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab

via Swedish cykel

StepLanguageWordMeaning
1Swedishcykela bicycle, a bike; a cycle, a period
2Latincyclusa circle; a cycle, recurring period; a branding...
3Ancient Greekκύκλοςcircle, ring; Any circular object, such as a...
4Proto-Indo-Europeankʷékʷloswheel; circle
5Proto-Indo-Europeankʷel-to turn
Every word from Proto-Indo-European ḱelh₂- →Every word from Proto-Indo-European ḱolh₂mos →Every word from Proto-Germanic halmaz →