Old Norse þat

← Old English þæt (cognate)

← English that (mention)

← Proto-Germanic *þat (inherited)

← Proto-Germanic *sa (mention)

← Old High German daz (cognate)

← Gothic 𐌸𐌰𐍄𐌰 (cognate)

← Proto-Indo-European *tód (inherited)

← Proto-Indo-European *só (mention)

← Old Saxon - (cognate)

→ Danish denne (inherited)

→ Westrobothnian he (inherited)

→ Westrobothnian diss (mention)

→ Westrobothnian att (inherited)

→ Old Swedish þæt (inherited)

→ Icelandic það (inherited)

→ Norwegian Bokmål det (derived)

→ Norwegian Bokmål dess (mention)

→ Norwegian Nynorsk dat (inherited)

→ Norwegian Nynorsk det (derived)

→ Norwegian Nynorsk dess (mention)

→ Norwegian Nynorsk dæ (inherited)

→ Old Norse sjá (mention)

→ Swedish det (inherited)

→ Swedish att (derived)