Where does “dessa” come from?

dessa (Norwegian Nynorsk) comes from Old Norse þessa, from Old Norse sá, from Proto-Germanic *sa, from Proto-Austronesian *əsa, from Proto-Oceanic *isa.

Ancestry of “dessa”, step by step

dessa traces back through two separate lines of ancestry.

via Old Norse þessa

StepLanguageWordMeaning
1Old Norseþessa
2Old Norsethis, that; to sow; saw, "first or third-person...
3Proto-Germanic*sa
4Proto-Austronesian*əsa
5Proto-Oceanic*isa

via Old Norse þessar

StepLanguageWordMeaning
1Old Norseþessar
Every word from Proto-Oceanic *isaEvery word from Proto-Austronesian *əsaEvery word from Proto-Germanic *sa