Old Norse þær

← Proto-Germanic *þôz (inherited)

← Proto-Germanic *sa (mention)

← Old Swedish þa (link)

← Proto-Norse ᚦᛋᛁᛋᛉ (inherited)

← Gothic 𐌸𐍉𐍃 (cognate)

→ Westrobothnian der (inherited)

→ Westrobothnian dahn (cognate)

→ Icelandic þær (inherited)

→ Elfdalian dier (mention)