Where does “*helm” come from?

*helm (Germanic) comes 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 “*helm”, step by step

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

Words derived from “*helm

Every word from Proto-Indo-European ḱelh₂-Every word from Proto-Indo-European ḱolh₂mosEvery word from Proto-Germanic halmaz