Where does “rófubein” come from?

rófubein (Icelandic) comes from Icelandic bein, from Old Norse bein, from Proto-Germanic bainą, from Proto-Indo-European bʰeyh₂- — to fear, be afraid; to strike, hit; to hew, cut.

rófubein (Icelandic): tailbone, coccyx

Definitions

  1. tailbone, coccyx

Ancestry of “rófubein”, step by step

rófubein traces back through two separate lines of ancestry.

via Icelandic bein

StepLanguageWordMeaning
1Icelandicbeina bone
2Old Norsebeinleg; bone
3Proto-Germanicbainąleg; bone
4Proto-Indo-Europeanbʰeyh₂-to fear, be afraid; to strike, hit; to hew, cut

via Icelandic rófa

StepLanguageWordMeaning
1Icelandicrófatail; rutabaga, swede
2Proto-Germanicrōbǭ—
Every word from Proto-Indo-European bʰeyh₂- →Every word from Proto-Germanic bainą →Every word from Old Norse bein →