Where does “fimmtugur” come from?

fimmtugur (Icelandic) comes from Icelandic fimm, from Old Norse fimm, from Proto-Germanic fimf, from Proto-Indo-European pénkʷe — five.

fimmtugur (Icelandic): fifty years old; fifty, semicentenarian, quinquagenarian

Definitions

  1. fifty years old; fifty, semicentenarian, quinquagenarian

Ancestry of “fimmtugur”, step by step

fimmtugur traces back through two separate lines of ancestry.

via Icelandic fimm

StepLanguageWordMeaning
1Icelandicfimmfive; the cardinal number after fjórir and...
2Old Norsefimmfive
3Proto-Germanicfimffive
4Proto-Indo-Europeanpénkʷefive

via Icelandic tugur

StepLanguageWordMeaning
1Icelandictugura group of ten
2Old Norsetigrgroup of ten
3Proto-Germanic*teguz—
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Germanic fimf →Every word from Old Norse fimm →
fimmtugur — Etymology, Origin & Word History | Etymology Explorer