Where does “Rygjafylki” come from?

Rygjafylki (Old Norse) comes from Old Norse fylki, from Proto-Germanic fulkiją, from Proto-Germanic fulką, from Proto-Indo-European pleh₁- — to fill.

Ancestry of “Rygjafylki”, step by step

Rygjafylki traces back through two separate lines of ancestry.

via Old Norse fylki

StepLanguageWordMeaning
1Old Norsefylkidistrict, county, shire; battalion, host;...
2Proto-GermanicfulkijąA collection of people; band; company; troop
3Proto-Germanicfulkąpeople; tribe
4Proto-Indo-Europeanpleh₁-to fill

via Old Norse rygir

StepLanguageWordMeaning
1Old Norserygir—
Every word from Proto-Indo-European pleh₁- →Every word from Proto-Germanic fulką →Every word from Proto-Germanic fulkiją →