Proto-Germanic Teiwaz, Tiwaz; Indo-European Deiwos, means God.
Tuesday (Tistag, Tirsdag, Tyrsdagen, Tuesday), the day of Tyr, the god of the Thing, of battle and war.
The rune is associated with the war god “Tyr”, who is also known as the god of battle and victory, but is also the guardian of the legal order.
The root of his name suggests that Tyr (Tiu, Ziu, Zio,) was originally the supreme sky god, who was later ousted from this position and declared to be the son of Odin.
Especially in the North Sea Germanic region, Tyr was and still is worshipped as the supreme god and god of war. Among the Frisians, the war god Tyr was presumably replaced by the war god Weda (Wodan)!
We are reminded of the Biike bonfires, which are lit on February 21st as sacrificial fires in homage to the war god. The custom of Biike burning had fallen somewhat into oblivion, but has recently experienced a revival – and not only in the North Sea Germanic region, such as on Sylt, Amrum, or Föhr.
The signs of the zodiac are ancient - behind them lies a mythology that is becoming increasingly understandable to us.
Tyr was at the center of this celestial gods' life cycle, which is why it was originally called the Tyr Circle.
With the increasing displacement of Tyr by Wotan, the latter then becomes the chief and law-god, as well as the (protector) of the Thing assemblies.
The "Tierstein", as we know it from the Harz Mountains, is most likely an old assembly place in honor of the law god Tyr.
A typical geographical term in this regard is, for example, the "Tierstein" (animal stone) - but presumably most places honoring Tyr in the Harz region have been forgotten.
The Tyr rune, also known as the arrow rune, represents fighting, courage and assertiveness, as well as justice.
The Tyr rune is depicted 3 times on each beard tube.