Old Norse þeir

← Proto-Germanic *þai (inherited)

← Proto-Germanic *sa (mention)

← Proto-Norse *ᚦᚨᛁᛉ (inherited)

← Gothic 𐌸𐌰𐌹 (cognate)

→ English they (derived)

→ English they (mention)

→ Danish de (inherited)

→ Danish både (mention)

→ Middle English þei (borrowed)

→ Faroese teir (derived)

→ Icelandic þeir (inherited)

→ Icelandic þeirra (mention)

→ Norwegian Nynorsk dei (inherited)

→ Elfdalian dier (inherited)

→ Swedish de (inherited)