Proto-West Germanic *Þunras dag

→ English Thursday (derived)

→ Old English þursdæg (derived)

→ Old English þunresdæg (inherited)

→ Danish torsdag (derived)

→ German Donnerstag (inherited)

→ Finnish torstai (derived)

→ Faroese hósdagur (derived)

→ Faroese tórsdagur (derived)

→ West Frisian tongersdei (inherited)

→ Old High German donaristag (inherited)

→ Alemannic German dontschtag (inherited)

→ Icelandic þórsdagur (derived)

→ Luxembourgish Donneschdeg (inherited)

→ Norwegian Bokmål torsdag (derived)

→ Dutch donderdag (inherited)

→ Norwegian Nynorsk torsdag (derived)

→ Old Norse þórsdagr (derived)

→ Saterland Frisian Tuunsdai (inherited)

→ Swedish torsdag (derived)

→ Vilamovian dunyśtaog (inherited)