Where does “hælm” come from?

hælm (Old Danish) comes 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.

Ancestry of “hælm”, step by step

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

Words derived from “hælm”

Every word from Proto-Indo-European ḱelh₂- →Every word from Proto-Indo-European ḱolh₂mos →Every word from Proto-Germanic halmaz →