Where does “herbadingum” come from?

herbadingum (Old Frisian) comes from Old Frisian hēm, from Proto-Germanic haimaz, from Proto-Indo-European ḱóymos, from Proto-Indo-European ḱey- — to be lying down; to settle.

Ancestry of “herbadingum”, step by step

herbadingum traces back through two separate lines of ancestry.

via Old Frisian hēm

StepLanguageWordMeaning
1Old Frisianhēm
2Proto-Germanichaimazhome; house; village
3Proto-Indo-Europeanḱóymosof the home, belonging to the family; village,...
4Proto-Indo-Europeanḱey-to be lying down; to settle

via English herbad

StepLanguageWordMeaning
1EnglishherbadA Zoroastrian priest of a minor order
Every word from Proto-Indo-European ḱey-Every word from Proto-Indo-European ḱóymosEvery word from Proto-Germanic haimaz