heiron m (oblique plural heirons, nominative singular heirons, nominative plural heiron)
From Low Frankish *haigro (“heron”), from Proto-Germanic *haigrô, *hraigrô (“heron”), from Proto-Indo-European *(s)kreik-, *(s)kreig- (“a type of bird”). Cognate with Old High German heigaro (“heron”), Old English hrāgra (“heron”), Old Norse hegri (“heron”), Welsh cregyr (“heron”).