Where does “tredjeland” come from?
tredjeland (Swedish) comes from Swedish tredje, from Old Swedish þriþi, from Old Norse þriði, from Proto-Germanic þridjô, from Proto-Indo-European tretyós, from Proto-Indo-European tr̥tyós, from Proto-Indo-European tréyes — three.
tredjeland (Swedish): a non-member country
Ancestry of “tredjeland”, step by step