The story
- Proto-Indo-European · derived from*ḱérh₂sō“head”
- Proto-Germanic · derived from*hersô“brain”
- Proto-West Germanic · inherited from*herʀn
- Old English · inherited fromhærnas“brains”
- Middle English · inherited fromhernes
- English todayharns
From Middle English hernes, from Old English hærnas (“brains”), plural of hærn (“brain”), from Proto-West Germanic *herʀn, from Proto-Germanic *hersô (“brain”), from Proto-Indo-European *ḱérh₂sō (“head”), from *ḱerh₂s- (“head”).
Words from the same roots
Proto-West Germanic*herʀn all →
harn
Proto-Germanic*hersô all →
harn
Etymology from Wiktionary, CC BY-SA 4.0.