Where does “þeirra” come from?

þeirra (Icelandic) comes from Old Norse þeir, from Proto-Germanic þai, from Proto-Indo-European to-, from Proto-Indo-European só — this; that.

þeirra (Icelandic): their, of them (referring to men), the genitive plural form of hann meaning "he"

Definitions

  1. their, of them (referring to men), the genitive plural form of hann meaning "he"

Ancestry of “þeirra”, step by step

StepLanguageWordMeaning
1Old Norseþeirthose; they
2Proto-Germanicþaithey; those; nominative plural masculine of *sa
3Proto-Indo-Europeanto-it; that; the, that
4Proto-Indo-Europeansóthis; that
Every word from Proto-Indo-European só →Every word from Proto-Indo-European to- →Every word from Proto-Germanic þai →