hrafn (Icelandic) comes from Old Norse hrafn, from Proto-Norse ᚺᚨᚱᚨᛒᚨᚾᚨᛉ, from Proto-Germanic hrabnaz, from Proto-Indo-European ḱorh₂-, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.
hrafn (Icelandic): raven